题目内容

-What did you do last weekend? -Oh,nothing________.

A. much
B. else
C. ever
D. yet

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He gave himself a new name to hide his_______ when he went to carry out the secret task.

A. emotion
B. talent
C. identity
D. treasure

Only when he apologizes for his rudeness _____ to him again.

A. I will speak
B. will I speak
C. do I speak
D. I speak

This type of system which______in the United Kingdom has been widely used throughout Europe and is gaining in popularity in the United States of America and Japan.

A. originated
B. original
C. originality
D. origin

2、现有直接耦合基本放大电路如下：A.共射电路 B.共集电路 C.共基电路选择正确答案填入空内，只需填A、B、……（1）输入电阻最小的电路是，最大的是；

A、C；B
B. A
C
D. B