All of us except him ______ America.

A．have been to

B．has been to

C．have gone to

D．has gone to

药材金钱白花蛇的白色环纹在背部的宽度为（）

A.1～2枚鳞片

B.2~3枚鳞片

C.3～4枚鳞片

D.4～5枚鳞片

E.5～6枚鳞片