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【多选题】
Because of the above mentioned disadvantages of secondary data, we will lead to evaluation of secondary data. Evaluation means the following four requirements must be satisfied:A.
Availability
B.
Sufficiency
C.
Relevance
D.
Accuracy
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举一反三
【单选题】When Wang Xin invited Mary, she said________.
A.
Do you want to go shopping with me this afternoon?
B.
Do you feel like going shopping with me this afternoon?
C.
Would you like to go shopping with me this afternoon?
【单选题】When Wang Xin encouraged Mary, she said___
A.
It’s ok. Don’t be afraid.
B.
It could happen.
C.
Don’t worry about that. There is not much chance of that happening.
【单选题】When explaining the exact reason of the haze, Wang xin said: ____.
A.
More factories is the main cause
B.
Environmental pollution is the main cause
C.
More vehicles we have is the main cause
【简答题】blog/blɔg/
【单选题】When Wang Xin asked Mary for advice, Mary said_______.
A.
I advise you to spend half an hour doing some practice every day.
B.
I would advise you to spend half an hour doing some practice every day.
C.
My advice is that you’d better spend half an hour doing some practice every day.
【简答题】服务器与客户端建立TCP连接采用_____次握手的方式。
【简答题】TCP为什么要采用“三次握手”的方式进行连接的建立？
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