“虚短”和“虚断”是运放工作在线性区的两个重要结论。
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集成电路是由各种单个元件连接起来的电子电路。
A. 对
B. 错
The question is ______ will take care of the children.
A. who
B. that
C. what
D. whether
I doubt______ the train will arrive here on time.
A. what
B. when
C. whether
D. who
I don't care ______ he will apologize to me or not.
A. who
B. whether
C. when
D. how
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