某一山岭，山麓B处与山顶A处的垂直高差为5000米。如果B处气温为2

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问题选择题

　　某一山岭，山麓B处与山顶A处的垂直高差为5000米。如果B处气温为20℃，则A处气温应该是多少摄氏度？[ ]

A．10℃

B．0℃

C．—10℃

D．50℃

答案

答案：C

选择题

She is new here, so we know _________ about her. [ ]

A. nothing

B. something

C. anything

D. everything

选择题

Having worked for a whole week，I decided to ________the rest of my assignment and go to the seaside for relaxation.

A．set out

B．set off

C．set up

D．set aside