There _______ two basketball matches on TV this evening.

A．are going to be

B．is going to

C．will have

D．are going to have

四格表资料的卡方检验时无需校正，应满足的条件是（）。

A.总例数大于40

B.理论数大于5

C.实际数均大于l

D.总例数大于40且理论数均大于或等于5

E.总例数小于40