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【单选题】
当输入信号频率为 f L 或 f H 时,那么放大电路增益的幅值约下降为通带内水平增益的A.
0.5倍
B.
0.7倍
C.
0.9倍
D.
1倍
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参考解析：
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皮皮学刷刷变学霸
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【单选题】对矩形截面构件,当轴向力偏心方向的截面边长大于另一方向的边长时,除按偏心受压计算外,还应对较小边长方向按( ) 进行验算。
A.
轴心受压
B.
大偏心受压
C.
小偏心受压
D.
无需验算
【简答题】Energy independence. It has a nice ring to it. Doesn't it? If you think so, you're not alone, because energy independence has been the dream of American president for decades, and never more so than i...
【单选题】1-What does the author say about energy independence for America?
A.
It sounds very attractive.
B.
It ensures national security.
C.
It will bring oil prices down.
D.
It has long been everyone’s dream.
【单选题】对于无筋砌体矩形截面受压构件，当轴向力偏心方向的截面边长大于另一方向的边长时，应对较小边长方向按( )进行验算。
A.
轴心受压
B.
偏心受压
C.
受弯构件
D.
受剪构件
【单选题】Energy independence. It has a nice ring to it, doesn’t it? If you think so, you’re not alone, because energy independence has been the dream of American presidents for decades, and never more so than ...
A.
It sounds very attractive.
B.
It ensures national security.
C.
It will bring oil prices down.
D.
It has long been everyone’s dream.
【简答题】对矩形截面构件,当轴向力偏心方向的截面边长大于另一方向的边长时,除按 计算外,还应对较小边长方向按 进行验算。
【单选题】对于矩形截面构件,当轴向力偏心方向的截面边长大于另一方向的截面边长时,除了按( )计算外,还应对较小边长按( )计算承载力。
A.
偏心受压；受弯构件
B.
偏心受压；轴心受压
C.
轴心受压；偏心受压
D.
受弯构件；偏心受压
相关题目：
【单选题】对矩形截面构件,当轴向力偏心方向的截面边长大于另一方向的边长时,除按偏心受压计算外,还应对较小边长方向按( ) 进行验算。
A.
轴心受压
B.
大偏心受压
C.
小偏心受压
D.
无需验算