第3题: [单项选择]The main idea of this passage is A. how to raise goldfish B. where a goldfish of normal size can survive C. how to feed goldfish D. we should keep goldfish as pets 参考答案:A 答案解析:[参考译文]本文的主要观点是______。
[试题分析]本题是综合归纳类。
[详细解答]全文讨论如何养好金鱼的经验,A项比较合适:B、C两项都是单一、片面的;D项不是主要内容。