题目内容

English and Chinese______quite different languages.

A. is
B. are
C. was
D. were

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Write a letter to your friend Zhang Ailing to convey your congratulations on her admission

驾驶员对客舱广播应将音频选择板上的发射机选择开关置于:

A. PTT
B. VOX/IC
C. SERV
D. Pa

Politeness can also bring dangers to people if not properly conducted.

A. TRUE
B. FALSE

使用或储存特殊贵重机器仪表、仪器等设备或物品的建筑,其耐火等级为()。

A. 一级
B. 二级
C. j级

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