题目内容

He always leaves _____for all the words he does not know in his translation.

A. blankets
B. blind
C. black
D. blanks

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Smoking and drinking are regarded as _____in some countries because they dono good to health.

A. vices
B. habits
C. customs
D. copies

The news has not yet been officially _____by the government.

A. struck
B. confirmed
C. founded
D. pointed

What _____ did you watch on television last night?

A. wave
B. frequency
C. channel
D. tunnel

文件、管理文件的软件及数据结构的总体()

A. 实现虚拟存储
B. 保存系统文档
C. 保存用户和系统文档
D. 实现对文件的按名存取

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