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听力原文：WB Where is everybody today? It's really quiet in here. MA Fridays in July and August tend to be like this. Lots of people taking vacation days or half-days to get out of the heat of the city. On top of that, there's some kind of promotional event being hosted by one of our vendors in the cafeteria. WB Right. Marge and Henry just told me that they were on their way over there. But still, it's almost too quiet. In a way it helps you concentrate on your work, but at the same time, it's so quiet it feels odd — like being here on a Saturday—and that doesn't help me concentrate! MA I know what you mean. Why don't we stop by the cafeteria ourselves to see what's going on? What does the woman comment on?A.
How hot the city is
B.
How loud the office is
C.
How tired the man looks
D.
How empty the office is
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【单选题】若有定义和语句： int a[10]＝{1，2，3，4，5，6，?，8，9，10}，* p＝a； 则不能表示a数组元素的表达式是 ( )
A.
* p
B.
a[10]
C.
* a
D.
a[p-a)
【单选题】用同一电导池测定浓度为 和 的同一电解质溶液的电阻,前者是后者的10倍,则两种浓度溶液的摩尔电导率之比为( )。
A.
1:1
B.
2:1
C.
5:1
D.
10:1
【单选题】Why did people usually read aloud before the nineteenth century?
A.
Few people could read for themselves, so those literate people read aloud to them.
B.
Reading aloud was a mark of one's literacy.
C.
Silent reading was not prevailing at that time.
D.
People read aloud for entertainment.
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