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【单选题】
方差分析中要求A.
各个样本均数相等
B.
各个总体方差相等
C.
各个总体均数相等
D.
两样本方差相等
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【简答题】What does the author mean by saying 'more challenging' in the last paragraph?
【简答题】What does the author imply by saying 'the city should have experienced an insoluble traffic confusion…?
【单选题】已知某配合物的 K f MY ==10 20.5 ,当 pH=12.0 时, [Y ¢ ]=[Y] , a M(L) =1 ,则 lg K ¢ f MY =
A.
12.5
B.
17.5
C.
20.5
D.
8.0
【简答题】What does the saying mean: 'If night has a fever, it cries in the morning'? Hot night ______ in the morning.
【单选题】设f(x)与g(x)在x=0的某去心邻域内有定义，并且当x→0时f(x)与g(x)都与x为同阶无穷小．则当x→0时， ．
A.
f(x)-g(x)必是x的同阶无穷小．
B.
f(x)-g(x)必是x的高阶无穷小．
C.
f(g(x))必是x的同阶无穷小．
D.
f(g(x))必是x的高阶无穷小．
【简答题】SSL 协议 不能够 保障电子商务交易中
【简答题】What does the author mean by saying that each country has its strengths?
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