問題詳情

26. Which of these statements about viruses is true?I. H5N1 virus is an RNA virus.II. SARS virus is a single positive-stranded RNA virus.III. Dengue fever virus is a mosquito-borne single negative-stranded RNA virus.IV. Zika virus is a single negative-stranded RNA virus.
(A) I and II
(B) I and III
(C) I and IV
(D) I, II, and III
(E) I, II, III, and IV

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