There are only twelve _______ in the hospital .

问题描述:

There are only twelve _______ in the hospital .
选项为A.woman doctor B.woman doctors C.women doctor D.women doctors 为什么?

D ( 12 + 名词复数)
当两个名词中有 man/ woman时都要变成复数,如:women doctors 女医生,men doctors 男医生