1. In some rural areas, public water supplies are tested for approximately 95 different _____ so it might not be safe to
drink water without boiling it.
(A) emblems
(B) contaminants
(C) fractures
(D) installations
詳解 (共 3 筆)
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(A) emblem n. 徽章;標記(...
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•考點: 名詞•題目: In some ...
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