题目内容

【B7】

A. probable
B. hopefully
C. then
D. still

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I bought a new house last year, but I ______ my old house yet, so at the moment I have two

A. did not sell
B. have not sold
C. had not sold
D. do not sell

计算机的时钟周期就是计算机的主频。（）

A. 正确
B. 错误

【B9】

A. replaced
B. taken
C. removed
D. gained

在Word文档中按下Home、End可使光标移到行首或行尾。（）

A. 正确
B. 错误