题目内容

It is desired that she _____ to teach us at least twice a week

A. comes
B. would come
C. come
D. will come

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Tender Forms will be available up to 4: 00 p.m. on February 15, 2004.

If Harry did not attend the conference last night, he _____ too much work to do.

A. had had
B. must have
C. had to have had
D. must have had

在海上,仅看到来船的一盏红灯,则来船为____。

A. 在航帆船
B. 在舤中的机帆并用船
C. 搁浅船
D. L>7米的机动船

为了确保输气管道安全可靠的运行,必须从设计、施工、()、日常运行管理、维修等各个环节切实抓好安全工作。

A. 选择管材
B. 管线焊接
C. 投产试运
D. 输送能力

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