-Do you think English is _________ math?

-I think so.[ ]

A. as more important as

B. as the most important as

C. as importance as

D. as important as

以虱为传播媒介的疾病是（）

A.疟疾

B.流行性斑疹伤寒

C.鼠疫

D.黑热病

E.流行性乙型脑炎