四格表χ2检验的校正公式应用条件为()
A.n>40且T>5
B.n<40且T>5
C.n>40且1<T<5
D.n<40且1<T<5
E.n>40且T<1
参考答案:C
城市雨水排放的主要方式()
A.强排
B.自排
C.直排
D.混排
His money had not brought happiness and perhaps it had contributed________ his strange sense of values.
A.up
B.for
C.as
D.to