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习题练习:HL Topic A2.3 Viruses

 作者: admin 发布日期: 2025-01-24 21:47   总分: 13分  得分: _____________

答题人: 游客未登录  开始时间: 25年01月24日 11:20  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) (组内1/6) 切至整卷模式 搜藏此题  
第 1 题组 (共 6 题 6 分)
  1. Which of the following features do viruses have iy+fswj+b bstx x8.-es 1.4 cfhn common with living organisms?+h8xjy xwfsb.+14eb .f s -sct

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2#
 
单选题 ( 1.0 分) (组内2/6) 切至整卷模式 搜藏此题  
  2. Which of the following factors complicates the t+n+cdf /)mrm97)e kbz3fqjtoreatment of human viral infectmt+ m9+z7f)/ekfcjr 3 onb q)dions?

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3#
 
单选题 ( 1.0 分) (组内3/6) 切至整卷模式 搜藏此题  
  3. Which of the following is the best description of the relationship ;7wp+s6gy71 coa5*uph hnww j between the virus and host w;pjyp 6whn*5asg7coh1+ u7w organism?

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4#
 
单选题 ( 1.0 分) (组内4/6) 切至整卷模式 搜藏此题  
  4. Which of the following are structures i5w nre( 51yq0bq8ijathat all viruses possess?

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5#
 
单选题 ( 1.0 分) (组内5/6) 切至整卷模式 搜藏此题  
  5. Viruses have several fdd dx/n6:6ds jk 0(trporms of genetic information but many structural features in common. Whadrnsddxtj0 6 /dp6:k (t does this suggest in terms of their evolution?

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6#
 
问答题 ( 1.0 分) (组内6/6) 切至整卷模式 搜藏此题  
7. Compare and contrast thjw2b ti;,z..lamt* 3guhbdv * e lytic cycle with the lysogenic cycle of viral infection of ama2bdht*b . lz, 3g t*ijw;vu. host cell.
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7#
 
问答题 ( 1.0 分) (组内1/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第1/7题
题组内容描述:
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
(a) Estimate the number of cases of Ebola in 1976-19+jjm1ql6*psq lij:5kqv t n) /77.
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8#
 
问答题 ( 1.0 分) (组内2/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第2/7题
题组内容描述:
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
(b) The total number of case of Ebola from 2000 to 2009 was 1194. Calculatq;(vep unfo6iy 6e 4t2e the total number of c 6qeoet4u6f2pny ;v i(ases that occurred from 1990 to 1999.
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9#
 
问答题 ( 1.0 分) (组内3/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第3/7题
题组内容描述:
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
(c) Calculate the percentage increase in the total number of cases from 200w2*v1lc aetmz9vn 7s 40 to 2009 in comparison tovca 129m*7tln4ws vez 1990 to 1999.
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10#
 
问答题 ( 1.0 分) (组内4/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第4/7题
题组内容描述:
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
(d) The Ebola virus first apq5(8xbd g6h+if a0frz peared in humans in 1976. Suggest how the virus first appeared in the gffrdai+ 8(x6 hz0q5b
human population.
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11#
 
问答题 ( 1.0 分) (组内5/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第5/7题
题组内容描述:
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
(e) A vaccine was trialled in 20b-qpj(jqkpt,)vx 42d18 and shown to be effective. It was made widely available from 2020. Suggest why ppj ,-xjtq2)bd(4 qvk a vaccine against a viral infection may prove ineffective in the long term.
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12#
 
问答题 ( 1.0 分) (组内6/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第6/7题
题组内容描述:
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
(f) The genetic mater tizmks:zvf4d.,5* b- ykl7uc 1 d1 8-psyvhqpial of the Ebola virus is single strand RNA. List two other forms-fs*v5p 7 ip,yh:-dzmvluq4c8s1. kt yzkb d1 that viral
genetic material may take.
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13#
 
问答题 ( 1.0 分) (组内7/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第7/7题
题组内容描述:
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
(g) The image below shows a particg)9qbay85 fk;ewnm0ssy; q0y le of the Ebola virus

The virus is approximately 1000 nm in length. Convert this size into µm.
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