We should urge the government to take some ( ) measures to ( ) the unpleasant social problems.

We should urge the government to take some ( ) measures to ( ) the unpleasant social problems.

题目
We should urge the government to take some ( ) measures to ( ) the unpleasant social problems.
We should urge the government to take some ( ) measures to ( ) the unpleasant social problems.
A.efficient,tackle B.effective,handle
C.efficient,cope D.effective,deal
答案是B.但是我不知道为什么,帮我解释一下,顺便帮我把整个句子翻译一下,谢谢~!
答案
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