单项选择题
关于距离判别法,下列说法错误的是( )。
A.只要求知道总体的数字特征
B.不涉及总体的分布函数
C.当参数未知时,可以用样本参数进行估计
D.考虑到每个总体出现的机会大小,即先验概率
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单项选择题
I have many dirty clothes _______.
A.to
B.to
C.washing
D.wash
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单项选择题
There are so many people in the hall _______ it's hard for me to find her.
A.because
B.that
C.for
D.why
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