In hot and dull summer afternoons, icy coffee _____ a wonderful drink. [ ]

A. produces

B. makes

C. remains

D. gets

湿痰的特征是（）。

A.痰中带血，色鲜红

B.白而清稀

C.咯吐脓血腥臭痰

D.白滑而量多

E.少而黏稠