题目内容

环形计数器在每个时钟脉冲CP作用时，仅有一位触发器发生状态更新。

A. 对
B. 错

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把一个五进制计数器和一个十进制计数器串联可得到十五进制计数器。

A. 对
B. 错

用反馈归零法实现任意进制计数器必须采用二进制计数器芯片，而不能采用十进制计数器芯片。

A. 对
B. 错

1. There was a terrible noise ____ the sudden burst of light.

A. followed
B. following
C. to be followed
D. being followed

2. The Olympic Games, ____ in 776 B. C., didn't include women until 1912.

A. first playing
B. to be first played
C. first played
D. to be playing