Camel contingent of Indian Border Security Force (BSF) march during the 66th Republic Day parade in New Delhi, India, January. 26, 2015. Republic Day marks the anniversary of India's democratic constitution taking force in 1950. Photo: Xinhua/Partha Sarkar

Shoes of victims are seen at the blast site in southern Pakistan's Shikarpur on January. 30, 2015. At least 35 people were killed and over 50 others injured as a blast hit a Shia Mosque in Pakistan's southern district of Shikarpur on January. 30 afternoon, officials said. Photo: Xinhua/Stringer

Children eat Laba congee at a buddhist temple in Nanjing, capital of east China's Jiangsu Province, January. 27, 2015. Laba, a traditional Chinese festival celebrated on the 8th day of the 12th lunar month, fell on January. 27 this year. It is a tradtion to eat Laba congee to mark the festival, and it is also a tradition of some temples and non-profit organizations to distribute the congee for free on this day. Photo: Xinhua/Sun Can

A fisherman sorts fish into different net pens at a pond in Deqing County, Huzhou City, east China's Zhejiang Province, January. 30, 2015. Local fishermen started the last catching from their fish farms before the upcoming Spring Festival, which falls on February. 19 this year. Photo: Xinhua/Xu Yu

  Serena Williams of the United States poses with the trophy after winning her women's singles final match against Maria Sharapova of Russia at the Australian Open tennis championship in Melbourne, Australia, January. 31, 2015. Williams won 2-0 to claim the title. Photo: Xinhua/Bai Xue

Li Xueyao of China competes during the ski jumping ladies'team final at 2015 Winter Universiade in Strbske Pleso, Slovakia, January. 29, 2015. China took the 4th place with 283.4 points. Photo: Xinhua/Fei Maohua

A boy walks in the snow at the square of the Hefei Railway Station in Hefei, capital of east China's Anhui Province, January. 29, 2015. Anhui greeted a heavy snow recently, when students started their journey home for winter vacation. Photo: Xinhua/Liu Junxi

Icicles hang on the guardrails along the Donggang sea area in Dalian, northeast China's Liaoning Province, January. 28, 2015. A cold front hit Dalian on January. 28. Photo: Xinhua/Lu Wenzheng

Photo taken on January. 25, 2015 shows an auction for the official vehicles in Beijing, capital of China. The central government has impounded 3,184 official vehicles and plans to auction the first 300 before the Spring Festival. Photo: Xinhua/Luo Xiaoguang

File photo taken on March 25, 2014 shows a staff member working at Alibaba Group's Xixi base in Hangzhou, capital of east China's Zhejiang Province. Alibaba shares plunged Thursday as the Chinese e-commerce giant's quarterly report showed weaker-than-expected sales growth. The Hangzhou-based company, which operates China's largest online shopping sites Tmall and Taobao, said sales on its platforms reached 787 billion yuan in the fourth quarter. Alibaba posted a 40-percent jump in sales to about $4.2 billion, lower than what analysts were expecting. On January. 29, Alibaba shares closed down 8.8 percent at $89.77, further down after a four-percent drop on Wednesday. Photo: Xinhua/Ju Huanzong

Photo taken on January. 31, 2015 shows four women doing yoga in Tianmenshan scenic spot after a snowfall in Zhangjiajie City, central China's Hunan Province. Photo: Xinhua/Shao Ying

An Egyptian girl looks on during a public rally near Tahrir Square in Cairo, capital of Egypt, on January. 25, 2015. Sunday marks the fourth anniversary of an upheaval that toppled Egypt's former president Hosni Mubarak. Photo: Xinhua/Cui Xinyu

The first of two life-sized Chinese terracotta warriors which will be displayed at the "Treasures of Ancient China" exhibition is unpacked at the Museum of Applied Arts in Budapest, Hungary, on January. 29, 2015. The exhibition opens on February. 6 and will last until April 19. Photo: Xinhua/Attila Volgyi

US President Barack Obama (L) and outgoing US Defense Secretary Chuck Hagel pass each other during a farewell ceremony at Virginia's Joint Base Myer-Henderson Hall, outside Washington D.C., the United States, January. 28, 2015. Photo: Xinhua/Yin Bogu