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【单选题】
Why does the speaker say there are great possibilities of communication breakdowns?A.
People differ greatly in their ability to communicate.
B.
Most public languages are inherently vague.
C.
There are numerous languages in existence.
D.
There is a big gap between private and public languages.
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反馈参考答案：
举一反三
【简答题】视距测量中，测站点的高程为62.382m，量得仪器高为1.600m。测得某地形点的竖盘读数为81°51′.0，三丝读数分别为：1169、1550、1931。则该点距测站点的水平距离为：，该地形点的高程为： 。（本题填第一空）
【单选题】---Sorry, I forgot to buy an envelope for you. ---Never mind, ______ it myself tonight.
A.
I.m going to buy
B.
I would buy
C.
I buy
D.
I’ll buy
参考解析：
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