The director-general fo the World Health Organization has more than once warned that another influenza ____ based on avian influenza or Asian bird flu is fast approaching.
(A)toxin
(B)rivalry
(C)pandemic
(D)symbiosis

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統計： A(28), B(10), C(261), D(42), E(0) #245604

詳解 (共 1 筆)

#321358
(A)toxin  【生化】毒素； 毒質
(B)rivalry   競爭；對抗
(C)pandemic  (疾病)全國流行的
(D)symbiosis  【生】共生；合作(互利、互依)關係
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