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【多选题】
借用物品收回后,下列做法正确的是 ?
A.
及时取消借用记录
B.
检查完好情况
C.
做好清洁卫生
D.
将物品编入客史
E.
电气物类物品要测试是否合格
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参考答案:
举一反三
【单选题】放大电路若要增大输出电阻,应该引入:
A.
电压负反馈
B.
电流负反馈
C.
串联负反馈
D.
并联负反馈
【单选题】They have opportunities to learn from professors they()would not be able to access.
A.
therefore
B.
or
C.
otherwise
【单选题】Many engineering professors may not have time to prepare material for class discussion on professional ethics.
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】要稳定输出电压,增大输入电阻,应该引入的负反馈类型是
A.
电压串联负反馈
B.
电压并联负反馈
C.
电流串联负反馈
D.
电流并联负反馈
【单选题】要增大输入电阻而减小输入电阻,应该引入( )负反馈
A.
串联电压
B.
串联电流
C.
并联电压;并联电流
【单选题】The passage implies that ______.
A.
different professors have different approaches to lecturing
B.
the purpose of a lecture is to impart information
C.
senior students do not attend as many lectures as freshmen
D.
a wide variety of subjects are covered in lectures
【简答题】某放大器想要增大输入电阻,则应该引入( )负反馈;某放大器想要减小输入电阻,则应该引入( )负反馈;
【单选题】要增大输入电阻而减小输出电阻,应该引入( )负反馈。
A.
串联电压
B.
串联电流
C.
并联电压
D.
并联电流
【单选题】要增大输入电阻而减小输入电阻,应该引入( )负反馈。
A.
串联电压
B.
串联电流
C.
并联电压
D.
并联电流
【单选题】Several engineering professors have quit from teaching to protest against the creation of a new course in engineering ethics.
A.
Right
B.
Wrong
C.
Not mentioned
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