在镜头焦距、和摄影距离都相同的情况下，光圈越小景深越大。
查看答案
光圈大小也决定景深的大小。光圈越大，景深越小；光圈越小，景深越大。
A. 对
B. 错
You reach a point __________ medicine can’t help.
A. where
B. in where
C. in which
D. what
We haven't yet settled the question __________ we are going to spend our summer vacation.
A. what
B. where
C. which
D. in where
He has __________ join the army.
A. applied
B. apply to
C. applied to
D. been applied to
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