The science program on TV showed me that

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问题 The science program on TV showed me that mosquitoes were the only means of_____ of malaria(疝疾).A.conductivityB.transformationC.transmissionD.transportation

选项 A.conductivity
B.transformation
C.transmission
D.transportation

答案 C

解析 transmission传播,这里指“疾病的传播”。conductivity传导率,传导性。transformation改变,转化,改造。transportation运输,客货运。
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