题目内容

The foreigners _________there, but they _________the food there at first.

A. u sed to live, didn ’t be used to
B. are used to living, didn ’t use to
C. used to live , weren ’t used to
D. used to living, usedn ’t to

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作业环境空气质量合格率ηk、有效风量率ηu合格标准为()%

A. ≥65
B. ≥60
C. ≥70

拆除柱子,应沿柱子底部剔凿出钢筋,使用手动倒链定向牵引,采用气焊切割柱子三面钢筋,保留牵引方向正面的钢筋()

I don’t understand ____ believe him.

A. why don ’t you
B. why you no
C. why you don ’t
D. why not you

墙或柱是建筑物的承重配件,承受屋顶、楼板下传来的各种荷载,并连同自重一起传给基础()

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