题目内容

Something that is ___measurable is too big to be measured.

A. in-
B. im-
C. il-
D. ir-

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If something is ___perfect, it is not completely correct.

A. in-
B. ir-
C. il-
D. im-

If you are ___loyal, you betray your friends or your country.

A. dis-
B. mis-
C. un-
D. il-

RC桥式振荡电路中，放大电路要匹配（）负反馈，可以尽量不影响选频网络。

A. 电压并联
B. 电压串联
C. 电流串联
D. 电流并联

（）基本接法的单级放大电路可以用于实现RC串并联正弦波振荡电路。

A. CC
B. CB
CE
D. 都可以