问题
选择题
fire, all exits(出口) must be kept clean. [ ]
A. In place of
B. Instead of
C. In case of
D. In spite of
答案
答案：C
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fire, all exits(出口) must be kept clean. [ ]
A. In place of
B. Instead of
C. In case of
D. In spite of
答案：C
