单项选择题

Speaker A：Do you mind waiting，while I grab my wallet？Speaker B：（）Weve still got time.

A．Take it easy.
B．Yes，please.
C．I sure do.
D．No hurry.

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热门试题

单项选择题

Speaker A：Good afternoon，Im here for my four oclock appointment with Dr.Brown.Speaker B：（）

A．Nice to see you.I’m Dr.Brown’s secretary.
B．Why don’t you have a seat for a moment？
C．Excuse me，when did you make this appointment with him？
D．I’m sorry.He will be busy the whole afternoon.

多项选择题

铀矿勘探、开采和加工的固体废物主要有（）。

A.采矿废石
B.选矿尾矿
C.水冶尾矿
D.浸出渣
E.废水中和沉淀物
F.其他沉积物、污染废旧设备器材和材料、污染垃圾