So how has this and does it matter?A. come about B. come outC. come inD. come across

So how has this and does it matter?
A. come about
B. come out
C. come in
D. come across

(答案→)A. come about B. come outC. come inD. come across解析：短语辨析。A形成，发生；B出版,刊出;出现,显露；C进来：D遇见；句意：那么这样的事情是如何发生的，又有什么关系吗？

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