Many houses in the north are warm in winter because they are ______ so that the beat is not lost.

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问题 Many houses in the north are warm in winter because they are ______ so that the beat is not lost.

选项 A、isolated
B、insulated
C、imparted
D、integrated

答案B

解析 形近易混词辨义。这四个选项都是动词形式,isolate表示“使孤立;使隔离”;insulate表示“使绝热;使绝缘”;impact意指“(常与on连用)对…施加影响”;integrate表示“使成整体;结合”。根据句意,北方的房子肯定是做了隔热处理,所以B)项符合题目要求。
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