Most colds are acquired by children in school and then______to adults.

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问题 Most colds are acquired by children in school and then______to adults.

选项 A、conveyed
B、transmitted
C、attributed
D、relayed

答案B

解析 大多数感冒都是孩子在校被传染上,然后再传染给大人的,表示“病毒传染”,因而选项B为答案。
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