.The traffic slowed down because of the heavy snow in Yushu county presenting a new to t

问题补充：

.

The traffic slowed down because of the heavy snow in Yushu county, presenting a new to the recovery from the earthquake.

A. suffering

B. disaster

C. challenge

D. damage

答案：

A. suffering

B. disaster

(答案→)C. challenge

D. damage

解析：名词辨析题。A．suffering 遭罪B．disaster灾难C．challenge 挑战D．damage 破坏句意：因为玉树大雪车辆减速这对灾后重建是一大挑战。根据语境选C