There is hard evidence ________ George has something to do with the murder.

A．which

B．what

C．why

D．that

气瘿的病因是（）。

A.脾失健运，痰浊凝结

B.一为忧患，二为水土不佳

C.气郁湿痰瘀血凝滞

D.忧思郁怒，湿痰凝结

E.产后，肾虚，外邪入侵