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【单选题】
—I think we should make a plan right away. —_______. We have no much time left.A.
Sounds boring
B.
Never mind
C.
Thank you
D.
I agree with you
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举一反三
【单选题】关于屏蔽材料的选择，下列说法正确的是
A.
屏蔽电场或远场的平面波即辐射场时，宜选择铜、铝、钢等高电导率材料
B.
屏蔽低频磁场，宜选玻莫合金、锰合金、磁钢、铁等低磁导率材料
C.
屏蔽电场或远场的平面波即辐射场时，宜选择铜、铝、钢等高磁导率材料
D.
屏蔽低频磁场，宜选择铜、铝、钢等高电导率材料
【单选题】Excuse me, could you please tell me how to get to the railway station?___________
A.
No, I couldn't .
B.
Sorry, I don't know. I'm new here.
C.
I couldn't tell you.
D.
You can't ask me.
【单选题】某商场有100名职工,把他们的工资加总起来除以100,这是
A.
对100个变量求平均
B.
对100个指标求平均
C.
对100个变量值求平均
D.
对100个标志求平均
【单选题】—Excuse me, could you please tell me where the airport is? —_____. [ ]
A.
Here you are
B.
Not at all
C.
No, I'm not sure
D.
Sorry, I'm a stranger here
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