Electric wires in your house are______with poor conductors like rubber or silk.

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问题 Electric wires in your house are______with poor conductors like rubber or silk.

选项 A、segregated
B、insulated
C、isolated
D、severed

答案B

解析 动词近义词辨析题。题意:“你房里的电线是用橡胶和丝绸这类导电性能差的材料绝缘的。”B insulate意为“使绝缘,使隔热,使隔音”,符合题意。A segregate:使隔离,使分开。C isolate:使隔离,使孤立,指将某人或物与其他人或事物隔离开。Dsever:切断,割断。
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