He has a habit of keeping his arms _____ when talking to others, which I personally think _____ impolite

to his audience.  [ ]

A. to be folded; it    

B. being folded; X    

C. folded; it    

D. folded; X

合格药品库（区）应标示（）

A.红色色标

B.黄色色标

C.蓝色色标

D.绿色色标

E.紫色色标