As () math,I am the best in my class.

题目

As () math,I am the best in my class.
for 2 to 3 in ,正确答案就一个,到底是哪个,为什么.

答案

因为as for 是个固定短语, 意为：至于,关于
如：As for you, you'd better be quick.至于你,你最好快点.



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