A rescue dog arrives at the Xinjin Service Area on the Chengdu-Ya'an Highway with members of the Ramunion Rescue from Hangzhou, capital of east China's Zhejiang Province, after 22-hour drive, in Ya'an, southwest China's Sichuan Province, April 21, 2013. Six members of the Hangzhou Outdoors Emergency Rescue Team arrived in the earthquake-hit Ya'an City after driving for consecutive 22 hours on Sunday. (Xinhua/Pei Xin) 

Dong Jiayue, only female member of the Ramunion Rescue, a rescue team from Hangzhou, capital of east China's Zhejiang Province, wears protective clothing at the Xinjin Service Area on the Chengdu-Ya'an Highway after 22-hour drive in Ya'an, southwest China's Sichuan Province, April 21, 2013. Six members of the Hangzhou Outdoors Emergency Rescue Team arrived in the earthquake-hit Ya'an City after driving for consecutive 22 hours on Sunday. (Xinhua/Pei Xin) 

Members of the Ramunion Rescue, a rescue team from Hangzhou, capital of east China's Zhejiang Province, arrange outfit at the Xinjin Service Area on the Chengdu-Ya'an Highway after 22-hour drive in Ya'an, southwest China's Sichuan Province, April 21, 2013. Six members of the Hangzhou Outdoors Emergency Rescue Team arrived in the earthquake-hit Ya'an City after driving for consecutive 22 hours on Sunday. (Xinhua/Pei Xin) 

A member of the Ramunion Rescue, a rescue team from Hangzhou, capital of east China's Zhejiang Province, arranges his outfit at the Xinjin Service Area on the Chengdu-Ya'an Highway after 22-hour drive in Ya'an, southwest China's Sichuan Province, April 21, 2013. Six members of the Hangzhou Outdoors Emergency Rescue Team arrived in the earthquake-hit Ya'an City after driving for consecutive 22 hours on Sunday. (Xinhua/Pei Xin) 

Members of the Ramunion Rescue, a rescue team from Hangzhou, capital of east China's Zhejiang Province, prepare to set off for the quake-hit region at the Xinjin Service Area on the Chengdu-Ya'an Highway after 22-hour drive in Ya'an, southwest China's Sichuan Province, April 21, 2013. Six members of the Hangzhou Outdoors Emergency Rescue Team arrived in the earthquake-hit Ya'an City after driving for consecutive 22 hours on Sunday. (Xinhua/Pei Xin)