黄连上清丸的功能是（）。

A.泻火通便，清肝明目

B.清热解毒，利水消肿

C.清热通便，散风止痛

D.清热解毒，泻火通便

E.清热燥湿，泻火解毒

It's not highly recommended that a dictionary be at hand when English learners _____ some new words. [      ]

A. come out

B. come about

C. come along

D. come across