______, it will make a difference to the life of the people in the earthquake – stricken area.

A However the contribution is small       B No matter small the contribution is

C However small the contribution is      D No matter how the contribution is small

石菖蒲治痰湿秽浊之邪蒙蔽清窍所致之神志昏乱，与其何种功效有关（）

A.开窍辟秽

B.清心化痰

C.凉血解毒

D.聪耳明目

E.豁痰化湿