题目内容

CMOS门电路闲置的输入端可以悬空不接。（）

A. 对
B. 错

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74LS00芯片内部的4个二输入与非门，因为共用电源和地，因此彼此不独立。（）

A. 对
B. 错

The Minister of Education is visiting our campus, by our university president.

A. accompanied
B. disbelieved
C. undertaken
D. embarrassed

Our university enrolls more students than our city’s other two colleges .

A. combined
B. doubted
C. crushed
D. stayed

The reports of terror attacks in Paris were across newspapers and websites.

A. claimed
B. presented
C. splashed
D. framed