問題詳情

13. Why is sanitation mentioned in the first paragraph?
(A)Guampa cannot filter out bacteria.
(B) Bombillas can be used to kill germs.
(C)High temperature is a threat to sanitation.
(D) It’s usually not sanitary sharing a straw with others.

參考答案

答案:D
難度:適中0.435754
統計:A(46),B(102),C(256),D(312),E(0)

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