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【单选题】
影响景深的因素,以下描述错误的是()A.
景深与光圈成反比，光圈大，景深小光圈小，景深大
B.
景深与摄距成正比，摄距远，景深大摄距近，景深小
C.
景深与镜头焦距成反比，镜头焦距长，景深小，镜头焦距短，景深大
D.
景深与摄距成正比，摄距远，景深小摄距近，景深大
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皮皮学刷刷变学霸
举一反三
【简答题】当轴的标准公差等级 ≤7级时,采用孔比轴 的配合;当轴的标准公差等级 ≥8级时,采用孔与轴 配合。
【简答题】I
wish you success in your career. _____A. You are welcome B. I think so C. Yes, please D. The same to you.
【简答题】未梳的其他人造纤维短纤
【单选题】What did the future look like for Britain's food production at the time this article was written?
A.
The fall in world food prices would benefit British food producers.
B.
An expansion of food production was at hand.
C.
British food producers would receive more government financial support.
D.
It looks depressing despite government guarantees.
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