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ThescientistsinChinaaretrying

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問題詳情:

ThescientistsinChinaaretrying

The scientists in China are trying __________ the ways to reduce the fog and haze (減少霧霾).

A.look for            B.to look for  C.to find out                    D.find out

【回答】

B

知識點:動詞和動詞短語

題型:選擇題

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