呕吐病名最早见于（）

A.《备急千金要方》

B.《金匮要略》

C.《兰室秘藏》

D.《内经》

E.《景岳全书》

A chain stripper is used to（）.

A.prevent chain from clinging to the wildcat

B.clean the marine debris from the chain

C.flake chain from a boat's chain locker

D.clean chain prior to an x-ray inspection