男生女生正常交往,能营造一种和谐、温馨、合作的氛围,这是因为( )
A:男女生不可以优势互补
B:男女生可以彼此取长补短
C:男生同化了女生
D:女生同化了男生
12化简的结果是( )
I know this plan is far from perfect, but I just can't think of _______one.