A. like B. through C. consists of A. what substances your tap water【T1】______ B. while the water streams【T2】______ pipel

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问题 A. like     B. through     C. consists of
A. what substances your tap water【T1】______
B. while the water streams【T2】______ pipelines
C.【T3】______ every other substance
    Drinking water,【T4】______ , contains small amounts of bacteria. Most of these bacteria are common ones and they are generally not harmful. Chlorine(氯)is usually added to drinking water to prevent bacterial growth【T5】______ This is why drinking water also contains small amount of chlorine.
    Water mostly consists of minerals and other inorganic compounds, such as calcium. If you want to find out【T6】______ and whether it is totally safe to drink, you can have a specialized agency check it out for you.
【T1】

选项 A、 
B、 
C、 

答案C

解析 what substances your tap water(自来水)——是一个从句,what是名词性从句的引导词,从句必须有谓语动词,因此本题选Consists of充当谓语动词,C是正确答案,意思是“你的自来水是由什么物质组成的”。
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