题目内容

在Excel 2016中,可以设置页眉和页脚。

A. 对
B. 错

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Up to now, we _______________ (not receive) any news from her.

A. hadn't received
B. haven’t received
C. is received
D. are received

I had intended to call on you yesterday, but someone____________(come) to see me.

A. come
B. comes
C. is coming
D. came

When Tom was a little boy, he already knew the sun________ (be) the center of the solar system.

A. are
B. be
C. is
D. has

I have worked here since I ________ (graduate) from college.

A. graduate
B. graduated
C. graduates
D. has graduated

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