The water of a hot spring carries many minerals,usually _________ us an unusual taste and smell.

A．has given

B．gives

C．to give

D．giving

对表证的下述认识欠妥的是（）。

A.新起之病必是表证

B.表证有外邪的侵袭

C.表证的病位较表浅

D.久病多数已无表证

E.表证可发展成里证