科研之友
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摘要
<正>下面有几个有趣的小问题。请你帮忙算一算它们的数量。1There were 42 dancing beans jumping around. Then 12 came jumping in to join the dance party. How many dancing beans were at the party in all?2The Candyman made 85 bags of cotton candy. He sold 57 bags of cotton candy at the fair(市集).
