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问题
多项选择题
拍摄大景深适合的参数是：（）
A.小光圈
B.小焦距
C.大光圈
D.大焦距
答案
参考答案：C, D
选择题
The coal miners ____ in the coal mine for 10 hours before we came to their rescue.
A. had trapped
B. had been trapping
C. had been trapped
D. would have been trapped
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判断题
银行业从业人员不得兼职。( )
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