Passengers are seen through the window of a train at Beijing Railway Station, February 5, 2015. Chinese Ministry of Transport said a total of 2.807 billion trips are expected to be made during the 40-day Spring Festival travel rush, which will begin on February 4 and last until March 16, Xinhua News Agency reported. (Photo by Jason Lee/Reuters)

In this photo taken Friday, January 16, 2015, Chinese schoolchildren wave Chinese flags and the 2022 Olympic bid logo to show their support at the ski resort in Yanqing, a suburb of Beijing, where the speed mavens of Alpine skiing and the sliding events – bobsled, skeleton and luge – have been proposed to be held in the bid for the 2022 Winter Olympics. Chinese authorities are making the final push in its bid for the 2022 Winter Olympics that will make the Chinese capital Beijing the first city to hold both the summer and winter Olympics. (Photo by Ng Han Guan/AP Photo)

A man picks up garbage from a canal in Guangzhou, Guangdong province, January 26, 2015. (Photo by Alex Lee/Reuters)

A couple take a “selfie” during a polluted day near a pier on the Yangtze River in Wuhan, Hubei province, January 26, 2015. (Photo by Reuters/China Daily)

Residents queue up for Laba porridge provided by a temple in Hefei, Anhui province January 27, 2015. Tuesday marks the Laba Festival, which falls on the eighth day of the twelfth month of the Chinese Lunar calendar and commemorates the date of Sakyamuni Buddha's enlightenment. The tradition of eating Laba porridge on this day is believed to bring good fortune to people. (Photo by Reuters/Stringer)

Construction sites are seen beside a newly-finished road in Xi'an, Shaanxi province, January 26, 2015. Steel demand in the world's biggest producer has also slowed as construction activities have been hampered by cold weather, further dampening prices. (Photo by Reuters/Stringer)

A woman burns incense during Laba Festival at a Buddhist temple in Huaian, Jiangsu province, January 27, 2015. (Photo by Reuters/Stringer)

Villagers watch rams fight during a game on Laba Festival in Liangshan, Shandong province, January 27, 2015. More than 100 people took part in the game with their rams on Tuesday. The Laba Festival, which falls on the eighth day of the twelfth month of the Chinese Lunar calendar, commemorates the date of Sakyamuni Buddha's enlightenment. (Photo by Reuters/China Daily)

Vendors wait to sell caged birds at a market selling pet birds in Juancheng, Shandong province January 28, 2015. (Photo by Reuters/Stringer)

Employees check on a pylon as it snows in Hefei, Anhui province, January 28, 2015. China plans to cut its growth target to around 7 percent in 2015, its lowest goal in 11 years, sources said, as policymakers try to manage slowing growth, job creation and pursuing reforms intended to make the economy more driven by market forces. (Photo by Reuters/Stringer)

Customers look at a waterbuck specimen at a shopping mall in downtown Shanghai January 28, 2015. The mall set up an area to display animal specimens of the Bovidae family to attract customers ahead of the Chinese New Year. The 2015 Lunar New Year welcomes the year of the Goat. (Photo by Aly Song/Reuters)

A barber shaves the face of his customer next to posters of Chinese President Xi Jinxing and his wife Peng Liyuan, at his barber shop in Yongjia county, Zhejiang province January 29, 2015. (Photo by William Hong/Reuters)

Pedestrians look on as a topless man (C), carrying a Chinese national flag and wearing cardboards printed with advertisements, promotes exercise equipment on a street covered by thin snow in Zhumadian, Henan province January 29, 2015. (Photo by Reuters/Stringer)

A winter swimmer does push-ups on the snow-covered banks of the Yangtze River, in Wuhan, Hubei province January 29, 2015. (Photo by Reuters/Stringer)

Tourists walk on a bridge covered by frosty fog on the Tianmen Mountain resort in Zhangjiajie, Hunan province, January 29, 2015. (Photo by Reuters/Stringer)

People take pictures and videos as a man (front) nets 100 yuan banknotes in a glass room to win cash prize during a local company's annual celebration before the Chinese Lunar New Year, in Shanghai, January 29, 2015. (Photo by Reuters/Stringer)

Railway workers clean the snow off a railway track at a station amid heavy snowfall in Xinmi, Henan province, January 28, 2015. Chinese government has signalled that it is keen to plough more cash into infrastructure both domestically and abroad as the economy slows, spurring the sector's stocks to their highest level since 2009. On Jan. 16, the national planner approved $8.6 billion of railway projects in the northern and southwestern parts of China. (Photo by Reuters/Stringer)

A book vendor reads a book as he waits for customer next to portraits of Chinese President Xi Jinping (L) and late Chairman Mao Zedong, at an open-air fair in Juancheng county, Shandong province January 30, 2015. (Photo by Reuters/Stringer)

A woman picks up recyclable materials, as seagulls look for food, at a dump site of a garbage disposal plant in Dalian, Liaoning province January 30, 2015. (Photo by Reuters/Stringer)

Participants dressed as Red Army soldiers look at a mobile phone as they wait backstage before their performance at a line dancing competition in Kunming, Yunnan province January 31, 2015. Hundreds of residents in about 60 dancing groups attended the competition which kicked off on Saturday and will last for eight days, local media reported. (Photo by Reuters/Stringer)

Yuan notes are seen as an employee of the Industrial and Commercial Bank of China Ltd (ICBC) talks to a customer at one of the bank's branch at the Shanghai Free Trade Zone in Pudong district, in Shanghai in this September 24, 2014 file photograph. The People's Bank of China (PBOC) is using its official guidance rate to put a floor under the yuan, a move that suggests Beijing is worried enough about mounting capital outflows to resume intervention in the forex market. (Photo by Carlos Barria/Reuters)

A worker cleans a wall at a shopping center, bearing an installation celebrating the upcoming Chinese Lunar New Year, in Beijing, February 2, 2015. Activity in China's factory sector shrank for the second straight month in January, a private business survey showed on Monday, as the new year got off to a rocky start for the world's second-largest economy. The slide is keeping pressure on Beijing to increase the pace at which workers migrate into services from once high-paying factory jobs, a challenging proposition given weak investment in retraining. (Photo by Kim Kyung-Hoon/Reuters)

A woman looks at a toy sheep at a shop in downtown Shanghai, February 2, 2015. The Chinese Lunar New Year on Feb. 19, will welcome the Year of the Goat. (Photo by Aly Song/Reuters)

Shoppers hold toy sheep at a shop in downtown Shanghai, February 2, 2015. (Photo by Aly Song/Reuters)

Passengers carry their luggage as they queue to board a train at a railway station in Nanjing, Jiangsu province February 2, 2015. Chinese Ministry of Transport said a total of 2.807 billion trips are expected to be made during the 40-day Spring Festival travel rush, which will begin on February 4 and last until March 16, Xinhua News Agency reported. (Photo by Reuters/Stringer)

A couple rest on their luggage as they wait to board their train at a railway station in Hefei, Anhui province February 3, 2015. (Photo by Reuters/Stringer)

A boy looks out from the window of a train at a railway station in Hefei, Anhui province February 3, 2015. (Photo by Reuters/Stringer)

Passengers wait to board a train at a railway station in Hefei, Anhui province February 3, 2015. (Photo by Reuters/Stringer)

A man looks at a installation made of sock textiles on display at a demonstration hall of the local sock-making industry in Zhuji, Zhejiang province February 2, 2015. European and Chinese factories slashed prices in January as production flatlined, heightening global deflation risks that point to another wave of central bank stimulus in the coming year. (Photo by Reuters/Stringer)

Passengers wait to have their tickets checked at Beijing Railway Station, February 4, 2015. Chinese Ministry of Transport said a total of 2.807 billion trips are expected to be made during the 40-day Spring Festival travel rush, which will begin on February 4 and last until March 16, Xinhua News Agency reported. (Photo by Jason Lee/Reuters)

A woman wears a face mask on the Bund during a hazy day in downtown Shanghai January 26, 2015. China's pollution crisis has inspired an environmental regulator in a smog-blanketed northern province to write a novel whose extracts have gone viral online, spurring plans for two more books. “Smog Is Coming”, published last June, touches on fraud and bureaucracy and their impact on air pollution, with the official China Daily reporting that online excerpts have received tens of millions of pageviews. (Photo by Aly Song/Reuters)

A passenger takes a nap in a waiting room at Beijing Railway Station, February 4, 2015. (Photo by Jason Lee/Reuters)

A labourer collects plastic bags on a dust screen covering construction waste near a power plant in Zhengzhou, Henan province in this July 15, 2014 file photo. China Power Investment Corp is merging with the State Nuclear Power Technology Corp, as Beijing drives consolidation in its rapidly expanding nuclear power sector with the aim of eventually exporting reactors. The Chinese power producer currently controls about a tenth of China's nuclear power market, while the State Nuclear Power Technology Corp was formed in 2007 to handle nuclear technology transferred from U.S.-based Westinghouse Electric Co. (Photo by Reuters/Stringer)

Primary school student Lele (R), 7, does his homework as his grandmother smashes concrete to look for recyclable steel bars at a demolition site in Zhengzhou, Henan province February 3, 2015. Lele's father was diagnosed with Leukemia four years ago and the family has been struggling to pay the medical bills. He came to help his grandmother collect recyclable materials to make extra money when his winter vacation started 10 days ago, local media reported. (Photo by Reuters/Stringer)

Primary school student Lele (L), 7, brings a piece of concrete to his grandmother as they look for recyclable steel bars at a demolition site in Zhengzhou, Henan province February 3, 2015. (Photo by Reuters/Stringer)

Members of the Chinese People's Liberation Army (PLA) honour guard enter a venue for a welcoming ceremony for Argentina's President Cristina Fernandez de Kirchner at the Great Hall of the People in Beijing February 4, 2015. (Photo by Kim Kyung-Hoon/Reuters)

A balloon vendor walks in front of a partially demolished building at a demolition site in Kunming, Yunnan province February 4, 2015. China's services sector grew at the slowest pace in six months in January as growth in new business weakened, a private survey showed, raising expectations that policymakers may unveil more stimulus steps to avert a sharper slowdown in the world's second-largest economy. (Photo by Reuters/Stringer)

Ou Mei, a 45-year-old female migrant construction worker, shields her face from dust during a shift at a residential construction site in Shanghai in this July 2, 2013 file photo. China's slowing economy is making it harder for Beijing to mend holes in its pension system for the country's 268 million migrant workers. (Photo by Aly Song/Reuters)

A Spring Airlines crew member sells food onboard an Airbus A320 aircraft near Shanghai in this July 6, 2012 file photo. A rush to buy into China's only listed low-cost carrier has sent Spring Airlines Co shares rocketing just as new arrivals herald the beginnings of a price war that could eat into already-low profit margins. (Photo by Aly Song/Reuters)

A woman stands on a street as security guards march behind her outside the Bank of China headquarters in the financial district of Beijing in this August 19, 2009 file photo. China's central bank cut the amount of cash that banks must hold as reserves on Wednesday, the first industry-wide cut in more than 2-1/2 years, as it increased efforts to shore up flagging growth in the world's second-largest economy. (Photo by David Gray/Reuters)

Workers install the glass wall of a building under construction in Guangzhou, Guangdong province, February 5, 2015. (Photo by Alex Lee/Reuters)

“Wand bearer” Marco Yau (L) and “Wicked witch of the East” Cherry Ma, both associated analysts from CLSA, pose with toy goats and a 2015 Feng Shui Index, during a news conference in Hong Kong February 5, 2015. Asian brokerage CLSA published on Wednesday its Feng Shui Index, a tongue-in-cheek forecast for the Hang Seng and sector outlooks for Hong Kong and China, in the Year of the Goat (also known as the Year of the Sheep or Ram). (Photo by Bobby Yip/Reuters)

A paramilitary policeman carries a man, who suffers a foot injury, on his back to board their train at a railway station during the travel rush period ahead of the Chinese Lunar New Year in Hefei, Anhui province February 5, 2015. The paramilitary policeman offered to carry the man to his seat after finding out that they were boarding the same train. Chinese Ministry of Transport said a total of 2.807 billion trips are expected to be made during the 40-day Spring Festival travel rush, which will begin on February 4 and last until March 16, Xinhua News Agency reported. (Photo by Reuters/Stringer)

A visitor looks at a newly-built giant statue in the shape of a shark at an aquarium in Handan, Hebei province February 5, 2015. The statue is 34-metres-long and 16-metres-tall, according to local media. (Photo by Reuters/China Daily)

Medical personnel wait next to stretchers after a fire broke out at a wholesale market building in Huidong county, Guangdong province February 5, 2015. The fire at the warehouse in China has killed at least 17 people, state news agency Xinhua said on Friday, the latest disaster in a country with a poor record on work safety. The fire broke out at on Thursday afternoon on the fourth floor of a small wholesale market in Huidong county in the southern province of Guangdong, the report said. It took more than six hours for firefighters to bring the blaze under control, Xinhua added. It did not provide further details. (Photo by Reuters/Stringer)

Men have their faces shaved next to an excavator working at a demolition site in Nanchang, Jiangxi province February 5, 2015. (Photo by Reuters/Stringer)

An excavator is seen atop a building being demolished in Shanghai, February 6, 2015. Weighed down by a cooling property market, industrial overcapacity and slowing investment, China's economy grew at its slowest pace in 24 years in 2014 and is expected to cool further to around 7 percent this year, even with additional stimulus. (Photo by Reuters/Stringer)

Skaters exercise and play ice hockey on a frozen canal on February 3, 2015 in Beijing, China. The Chinese capital is a candidate city for the 2022 Winter Olympics. (Photo by Kevin Frayer/Getty Images)

A girl looks at traditional decorations for the upcoming Chinese Lunar New Year celebrations at a market in Beijing February 6, 2015. The Chinese Lunar New Year on February 19 will welcome the Year of the Sheep (also known as the Year of the Goat or Ram). (Photo by Kim Kyung-Hoon/Reuters)

Visitors take a selfie in front of lantern decorations installed to prepare for Spring Festival celebrations in a temple fair at a park, in Beijing February 6, 2015. (Photo by Reuters/Stringer)

An employee tests newly-made light bulbs along a production line of a factory in Jiaxing, Zhejiang province February 6, 2015. (Photo by William Hong/Reuters)

Pig heads are seen on sale as customers select pork at a meat stall of an open-air fair in Puhe township of Shenyang, Liaoning province February 8, 2015. China's consumer price inflation likely slowed to a five-year low in January due to falling oil prices and sluggish demand, while export growth was seen sagging, a Reuters poll showed, raising questions whether more policy stimulus is needed to combat deflationary pressures. (Photo by Reuters/Stringer)

A passenger sleeps in his seat on board a train, that has been set aside exclusively for migrant workers travelling from Guangzhou of Guangdong province to Wuhan of Hubei province, February 7, 2015. (Photo by Reuters/Stringer)

Passengers sit and stand in the corridor of a train, set aside exclusively for migrant workers travelling from Guangzhou of Guangdong province to Wuhan of Hubei province, February 7, 2015. (Photo by Reuters/Stringer)

A worker walks in front of bullet trains parked at a high speed railway maintenance station during the travel rush period ahead of the Chinese Lunar New Year, in Hefei, Anhui province February 7, 2015. Chinese Ministry of Transport said a total of 2.807 billion trips are expected to be made during the 40-day Spring Festival travel rush, which will begin on February 4 and last until March 16, Xinhua News Agency reported. (Photo by Reuters/Stringer)

Yu Qiquan, a local dough modelling artist, polishes a giant sculpture of Cai Shen, or the God of Wealth, which will be put on display at a department store during the Chinese Lunar New Year, in Shenyang, Liaoning province February 9, 2015. The 2.28-metre-tall sculpture, was made from 150 kg (321 lbs.) of glutinous rice flour on steel frame. It took Yu two months to build and cost over 10,000 yuan ( $1,601). The Chinese Lunar New Year on Feb. 19 will welcome the Year of the Sheep (also known as the Year of the Goat or Ram). (Photo by Sheng Li/Reuters)

A flight attendant (C) dressed as Cai Shen, or the God of Wealth, speaks to a passenger during a promotional event to celebrate the upcoming Chinese Lunar New Year, on a Lucky Air flight travelling from Hangzhou of Zhejiang province to Kunming of Yunnan province, February 8, 2015. (Photo by Wong Campion/Reuters)

Villagers shave the hair from a pig as they slaughter it, to serve the meat to the family during the Chinese Lunar New Year, in Tangyue village of Pingba county, Guizhou province February 8, 2015. (Photo by Reuters/Stringer)

A man installs decorations for the upcoming Chinese Lunar New Year celebrations at Taoranting park in Beijing February 9, 2015. (Photo by Kim Kyung-Hoon/Reuters)

A girl plays with snow inside a display of plastic penguins during the Ice and snow carnival at Taoranting park in Beijing February 9, 2015. (Photo by Kim Kyung-Hoon/Reuters)

A man holds two sneakers of his collection of Nike Air Jordan as he sells them at a pawn shop in Beijing February 8, 2015. The man pawned a total of 283 pairs of his Nike Air Jordan sneakers collection on Sunday for a million yuan ($160,000 USD), which he needed for the down payment of his wedding apartment. He had been collecting sneakers for over 10 years and he was planning to redeem them within the two months contract with the pawn shop, local media reported. (Photo by Reuters/Stringer)

People's Liberation Army (PLA) soldiers and paramilitary policemen stand next to slaughtered pigs which are part of the goods donated by the local government to celebrate the upcoming Spring Festival, in Liangshan Yi Autonomous Prefecture, Sichuan province February 8, 2015. The Chinese Lunar New Year on Feb. 19 will welcome the Year of the Sheep (also known as the Year of the Goat or Ram). (Photo by Reuters/Stringer)

A boy rides on a snow wagon towed by a robot dressed as a Teddy bear, which only moves forward by moving its legs, during the Ice and snow carnival at Taoranting park in Beijing February 9, 2015. (Photo by Kim Kyung-Hoon/Reuters)