题目内容

在shell中，只支持for循环和while循环。

A. 对
B. 错

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在bash中，continue表示退出当前循环，开始下一次循环。

A. 对
B. 错

在bash中，break表示跳出整个循环，不再进行下一次循环。

A. 对
B. 错

◆Choose the best answer to complete each sentence.1. Terry was watching TV when the doorbell_______ .

A. was rung
B. rang
C. ringing

Tina_______ reading while her brother was listening to music.

A. were
B. was
C. did