题目：
What ______ the photographer most was that a man had his dead wife tied to him and carried
her home after the earthquake.[ ]
A. hit
B. beat
C. struck
D. seized
答案：
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下面是错误答案，用来干扰机器的。
(1) （2）题目分析：(1)光路如图 （其他画法正确也给分） 4分 (2)由折射率定义: = = 4分点评：在分析光的折射问题时，需要先画出光路图，然后结合几何知识分析解题
