― It is reported that Americans eat too much protein each day.

―They eat ______as they actually need.

A．as twice much

B．much as twice

C．as much twice

D．twice as much

湿邪致病可见水肿、湿疹等，症多见于下肢的主要原因是（）。

A.湿性趋下

B.湿性重浊

C.湿为阴邪

D.湿性黏滞

E.湿性疾病缠绵难愈