题目内容

No. 16

A. a. It was noisy.
B. b. His baby was sick.
C. c. It was boring.
D. d. His watch went wrong.

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No. 17

A. a. Mr Wong.
B. b. Mr Office.
C. c. Mr Adam.
D. d. Mr Brown.

No. 18

A. a. On Thursday.
B. b. On Wednesday.
C. c. On Tuesday.
D. d. On Monday.

No. 19

A. a. Arrange the meeting.
B. b. Write a report.
C. c. Call the man in the afternoon.
D. d. Pass the message.

用两片八选一数据选择器74LS151,可以构成十六选一数据选择器。

A. 对
B. 错

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