下面说法错误的是：场效应管（）。A、也称为双极型晶体管 B、也

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问题单项选择题

下面说法错误的是：场效应管（）。

A、也称为双极型晶体管

B、也称为单极型晶体管

C、的载流子只通过一种极性的半导体

D、是利用多数载流子导电的器件

答案

参考答案：A

选择题

The hostess told us it was _____ that caused her to serve dinner an hour later than usual. [ ]

A. for our being late

B. our being late

C. we were too late

D. because we were late

填空题

采用IPv4．协议的互联网中，IP地址的长度是______位。