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【单选题】
____小,表示用该样本均数估计总体均数的可靠性大A.
CV
B.
S
C.
标准误
D.
四分位数间距
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【简答题】Put the dialogue in order. Please write down the numbers in right order. 1 I’d prefer to get them at the station. 2 The weather’s nice, so 3 Yes, good idea. 4 What shall we do this wee...
【简答题】假定需求不变，供给的增加将引起均衡价格的下降和均衡交易量的减少。( )
【单选题】Why is it better to say 'exhausted' and not 'very tired'?
A.
Because 'exhausted' has a clearer meaning than 'very tired'.
B.
Because using fewer words helps to make your writing clearer and more focused.
C.
Because 'very tired' is empty and has no meaning.
D.
Because using less common words like 'exhausted' will impress your reader.
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