题目

The traffic slowed down because of the heavy snow in Yushu County, presenting a new _____ to the discovery from the earthquake. A. suffering        B. disaster          C. damage            D. challenge 答案：D 解析: 略在画线字正确的读音下面画“√”。恬 静（tián tiǎn）　　 充 满（chōng cōng）　　浑 厚（hūn hún）　　臂 膀（bèi bì）