—Reading is the best way to pass time on the train.

—          , I never go traveling without a book.

A．You are joking

B．That's true

C．I don't think so

D．It sounds like fun

牙龈出血，红肿热痛者多见于：（）

A.血热证

B.肾阴虚证

C.脾不摄血证

D.胃火亢盛证

E.肝火上炎证