题目

图钉尖的面积比图钉帽的面积小得多, 是为了: A. 增大压力;        B. 减少压力;        C. 增大压强;        D. 减小压强. 答案：CI wondered ___. A. what the matter was   B. what was the matter   C. the matter was what   D. was the matter what