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are to blame is to be blamed are to be blamed is to be blamed
-∞＜χ2＜+∞ 0≤χ2≤+∞ χ2≤1 -∞≤χ2≤0 χ2≥1
that is who is that should who are
is to be blamed for are to be blamed for are to blame for is to blame for
No wonder; balance No doubt; keep No problem; make No way; fix
χ12 =χ22 χ12 ＞χ22 χ12 ＜χ22 χ12 比χ22准确 χ22 比χ12准确
are to blame is to be blamed are to be blamed is to be blamed
are to blame is going to be blamed are to be blamed is to blame
does， will will， does will， would does， do
-∞<χ2<+∞ -∞<χ2<0 0χ2<+∞ -1<χ2<1 χ2≤1
does, does mine will , will mine does, will mine does, mine will
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