Which of the following is least accurate An interest rate collar is:（）

A. a combination of a long cap and a short floor.

B. a combination of a short cap and a long floor.

C. a combination of a long cap and a long floor.

卫分证临床基本特征是（）

A.发热微渴

B.发热头痛

C.发热汗出

D.发热微恶风寒

E.发热咳嗽