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【简答题】
醋酸乙烯酯俗称(),它是()和()的简单酯,其化学结构的特点是含有()
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举一反三
【单选题】What would people do in the future?
A.
To craft a new identity.
B.
To enjoy something impossible.
C.
To go to desired places.
D.
A, B and C
【简答题】Have you ever heard the story of the four-minute mile? For years people believed that it is impossible for a human being to 【1】 a mile in less than four minutes until Roger Banister proved it 【2】 in 1...
【简答题】Have you ever heard the story of the four- minute mile? For years people believed that it is impossible for a human being to 1 a mile in less than four minutes until Roger Banister proved it 2 in 1954...
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