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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 in cola0,*f m- h8a hzv0x vw*halg.mmon with living organisms?-0*8m, 0xvaahh.zv gall*whf

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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 g xp+ 9(p8x fp8m 7t/fa4khavucomplicates the treatment of human viral infections?(/km fftvx u4p p h8x7gp8a+9a

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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 descriptyjnv /)cndctf6 0/qv *ion of the relationship between the virusqvv/t)yjc /n*0 fd6nc and host 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 followingjf nfdr7xs*4q)q:;x az y(ax0 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 informah 0s1 bn3*awok39 yewjtion but many structural features in common. What does this suggest in terms of their evolutiwhkya1w9on30 s 3ebj*on?

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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 wiahfm-iu)z:w24 im t,ath the lysogenic cycle of viral infection of a host hm wiuima2z)at ,f-4: 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 in7w 7l a76.b orxm n50bgarq/qf 1976-1977.
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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 wjx-)kn*w5w iu as 1194. Calculate the ix5jk)wwu* n- total number of cases 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+ 7/lnu-y qelp cases from 2000 to 2009 in comparison to 1+puqy7en -l/l 990 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 appeared in humans in 1dmou ut19 zw, fiq upx+zh1o:7n -*)hv976. Suggest how the virus first apumdhzoxw q tu-p z fo1hi7,: u91*+n)vpeared 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 b ls0etlht)*dkd*lokd4qfq,fk 0 ,4 c/e effective. It was made widely available from 2020. Suggest why a vaccine against a viral infection may prove ineffective in the lqchedt4q d ,k,k0 *)lk o*lf/sfldt04ong 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 strandi.zho/6py 8t* zqr.gd RNA. List two other forms t.zi/z6t .d8 *qr hpgoyhat 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 particle of the Ebola virusc,- ngntet;s ;qlm;6 s

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