题目：
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：
答案：C
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：C
