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问题 单项选择题

交通建筑中，供旅客站着购票用的售票窗台或柜台，其高度何者合乎人体尺度（）

A. 900mm

B.≤1000mm

C. 约1100mm

D. ≥1200mm

答案

参考答案：C

选择题

— I've lost in the game again.

— ________, you still have more chances. [ ]

A. What a pity  

B. Don't lose heart

C. Don't lose your heart  

D. I'm sorry for you
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选择题

Tom was about to close the window ________ his attention was caught by a bird.

A．when

B．if

C．and

D．till
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