Who says man is alone in trying to the problem of air pollution? There are certa
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Who says man is alone in trying to ______the problem of air pollution? There are certain moths(蛾) whose color serves to protect them.
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A． solveB． settleC． haveD． meet
试题答案
答案：A
解析：issue 解决争端、争论、问题等。 |