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【多选题】
以下说法正确的是( )。A.
尽量使用单反机的最低ISO值
B.
一般拍摄尽量使用自动白平衡
C.
遮光罩使用与否对于拍摄没有任何影响
D.
光圈F 数值越光圈的物理孔径越大
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反馈参考答案：
举一反三
【简答题】阅读理解。 John lived with his mother when he was young. He didn't know who his father was. The woman did some washing for the rich and could buy only some bread for her son. So the boy was short and thin....
【单选题】设盒中有10个木质球,6个玻璃球,木质球有3个红球,7个蓝球,玻璃球有2个红球,4个蓝球。现从盒中任取一球,用A表示“取到蓝色球”,用B表示“取到玻璃球”,则P(B|A)=( )
A.
６／１０
B.
６／１６
C.
４／７
D.
４／１１
【简答题】阅读理解。 John lived with her mother when he was young. He didn't know who his father was. The woman did some washing for the 'rich and could buy onl'y some bread for her son. So the boy was short and th...
【单选题】假设盒中有10个木质球，6个玻璃球，玻璃球中有2个红色4个蓝色，木质球中有3个红色7个蓝色，现从盒中任取一球，用A表示“取到蓝色球”，用B表示“取到玻璃球”，则P(B|A)=
A.
6/10
B.
6/16
C.
4/7
D.
4/11
【单选题】设盒中有10个木质球,6个玻璃球。木质球有3个红球,7个蓝色;玻璃球有2个红色,4个蓝色。现在从盒中任取一球,用A表示“取到蓝色球”,B表示“取到玻璃球”,则 ( )
A.
6/10
B.
6/16
C.
4/7
D.
4/11
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