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【多选题】
这是一张曝光过度的照片,拍摄参数如下:1/30S、F11、ISO800,35mm,我们可以通过以下哪些方法让画面曝光正常?【图片】
A.
降低感光度
B.
提高快门速度
C.
调大光圈系数
D.
使用长焦镜头
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【多选题】在图示电路的基础上组成的反相比例电路和同相比例电路,其区别在于( )。【图片】
A.
后者的电压增益大一些
B.
后者的输入电阻大一些
C.
后者的输出电阻大一些
D.
后者的输入信号大一些
【单选题】You __ go and see a doctor at once because you have got a fever.
A.
can
B.
must
C.
dare
D.
would
【判断题】If you want to go and see a doctor, it's a good idea to make an appointment before you go.
A.
正确
B.
错误
【判断题】同相求和电路跟同相比例电路一样,各输入信号的电流几乎等于零。()
A.
正确
B.
错误
【简答题】同相比例电路属____负反馈电路,而反相比例电路属 负反馈电路。
【单选题】You'd better go and see a doctor if you ______.
A.
see a sleepwalker in action
B.
never sleepwalk
C.
sleepwalk frequently
D.
sleepwalk occasionally
【单选题】You’d better go and see a doctor if you
A.
see a sleepwalker in action.
B.
never sleepwalk.
C.
sleepwalk occasionally.
D.
sleepwalk frequently.
【判断题】When you feel ill and want to go and see a doctor, it is a good idea to make an appointment before you go.
A.
正确
B.
错误
【判断题】同相求和电路与同相比例电路一样,各个输入信号的电流几乎等于零。
A.
正确
B.
错误
【单选题】When you feel ill and want to go and see a doctor, it is a good idea to make an appointment before you go .
A.
Appropriate.
B.
Inappropriate.
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