An investigation that is unguided can occasionally yield new facts, even notable ones, and the typical appearance of such facts is the result of a search in a definite direction.

A. but the typical appearance of such facts
B. but typically the appearance of such facts
C. and typically the appearance of facts as such
D. and the typical appearance of facts as such

轻清宣气法的主要作用主要有：（）.

A.清热解毒

B.透泄热邪

C.分利湿邪

D.宣畅气机

E.分消走泄