問題詳情
6. Bird flu, a viral disease of birds, does not usually ______ humans; however,some viruses, such as H5N1 and H7N9, have caused serious diseases in people.
(A) infect
(B) inform
(C) illustrate
(D) inflate
參考答案
答案：A
難度：適中0.623554
統計：A(593),B(133),C(124),D(101),E(0)
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inform通知。illustrate說明