MMEI（MME Identity）由MMEGI和（）组成。
参考答案：MMEC
It is not how much we do but how much love we put into what we do ________ benefits our work most.[ ]
A. who
B. which
C. that
D. what
符号（）不可以作为文件标志名的字符。
A.0～9
B.!
C.$
D.>
