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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: 匿名未登录  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.)a9 y4c pbz9iuwiw6x features do viruses have in common with living organism)a9uy 4b c9wiwp iz6x.s?

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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 treatmentosh,8i3xgzr l55mh )z of human viral infec5grxl83,zhi h5 zoms)tions?

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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 descriptqkebuk 3:jg +m2r* yl:u/hra t)odo.,ion of the relationship between the virus and hybkrghqe m,: ) ouk.rud l+*:3o/t2 ajost 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 followr3m99-h,+wtgf ka rxqe 7s ;dling are structures that 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 forms of genetic information but many strt k,vq0qjf*ks q;3rp5uctural features in common. What does this suggest in terms of their evoluqrk kjq53t* ;f0qv,pstion?

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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 the lytic cycle with thpeksn98uy * 75byd q--r.6hy1xkoqqeo r; qo -e lysogenic cycle of viral infection orerhk85 yoyo* y6-qqbu-.7 9eqndqks ;x1o p- f a 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 19760rdd,3.w c uyi9husrx:so d5,-1977.
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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 ddzo2a) zl( j*v +:cep1194. Calculate the total number of cases that occurred from 1990 to azl*: 2d +edv cp(z)oj1999.
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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 perce1o l8xsus/i d,ntage increase in the total number of cases from 2000 to 2009 is18l /id, suxon comparison to 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 q2c9h+run9(kx b5 ,up*2k zv8e nc nmxfirst appeared in humans in 1976. Suggest how the virus first cc5vzmkhnbxu 9p 8q 9u2x( r*+nk,e2nappeared in the
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 2018 and shown to be effective. Itc 6.boleywvx 0.u3c9l was made widely available from 2020. Suggest w .ylvc b06.olu9 c3xewhy 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 material of the Ebola virus is single strand RNA. Lim;gyfg 92sh(:z zn s,t8 p6rjust two other for8ytmgznssz, g ;(6f2ujh: pr9ms 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 partiw.g-2u * zipz/xxgj9h cle of the Ebola virus

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