－I knocked over my coffee cup. It went right over ______ keyboard.

－You shouldn't put drinks near ______ computer. [ ]

A. the; 不填

B. the; a

C. a; 不填

D. a; a

桂枝用于寒凝血滞诸痛证，可见于（）

A.胸痹心痛

B.经闭腹痛

C.风寒湿痹

D.脘腹冷痛

E.鼻渊头痛