HL Topic A2.3 Viruses (id: 1149168b6)

本题目来源于试卷: HL Topic A2.3 Viruses，类别为 IB生物学

[单选题]
2. Which of the following yvp*w7f47mo x fact5xrb8o zxkbc m; ddj(1+ )xe/hors complicates the treatment of human viral infecti1xj kbx cdh e /rzm;5o)8+(xbdons?

A. RNA genetic material.
B. Rapid evolution by mutation
C. Slow evolution by mutation.
D. Viral infections are usually fatal.


参考答案:  B


本题详细解析: 暂无

微信扫一扫，分享更方便