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【多选题】
公共关系礼仪要注意差异性原则,其中包括( )。A.
性别差异
B.
财富差异
C.
外事差异
D.
地位差异
E.
肤色差异
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【简答题】1阐述水准测量控制网平差的数学模型,从函数模型和随机模型两个方面阐述
【简答题】有人认为“因特网就是万维网”,这种看法对不对?为什么?
【单选题】听力原文：W：Did you buy the radio you saw in the newspaper that day? M：By the time I got to the shop, they were all sold out of the brand I wanted. I'd like to try other shops today. Q：What does the man me...
A.
He didn't have enough money
B.
Radios of all, brands were sold out then.
C.
He couldn't get the right brand of radio.
D.
The store will sell the radio tomorrow.
【单选题】— ____did you buy the teddy bear? — At the toy shop. [ ]
A.
Where
B.
When
C.
What
D.
Why
【简答题】【图片】请问上面哪个表达式与另外3个逻辑功能不同？请填入1（或2、3、4），填入其它文字会判错哦！！！
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