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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 features dgygj;8q;keb a )fvo 9-qr1w6qo viruses have in common with living organis6f o)8;r9q qe1wgka-;vjqyg bms?

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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 thes 3mdr zz:/v6t- y1ojv treatment of human viral infectiond1vv -6rj3yo /mtzs:zs?

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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 oft:ed7j /p/:g wizoy s/h/,nks the relationship between thnd hzs /g//io:y:/ kw7tsj e,pe virus 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 following cc)r sbm6j3 pguy5(j7zvgj .4are 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 forma0ta/gbr wp0/es 1op:s of genetic information but many structural features in common. What does this suggest in terms /0 1bt:sa0p /ropg ewaof 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 the lytic cycle with the lysogenic cycle of l7y2ay8. mr zrqsils* k9/u2t viral infection of a host cel iu/qr2*amsy.7r ys9t2 8kz lll.
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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 csd4 7/iq+61tl/bk yz gi. pgsvases of Ebola in 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 zdo7 0pq xp0f.case of Ebola from 2000 to 2009 was 1194. Calculate the total nu f7zpdq0x. p0omber 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 oa4ge q dn/z/j3liaf;9f cases from 2000 to 2009 in ez9a i;q /34gjf /adlncomparison 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 first appeared in humans in 1976. Suggest how 0(aq tikjf /l +s4vxaf 9nvc81the virus first icvt4 j/9 sx kq08fna(+alf1vappeared 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 sr,hc 2;nfjx6h.wqg-vq5y l7*dp x k3qhown to be effective. It was made widely availaf;* 35l6-hq,vj27 hrk.q cpndyqwxgxble from 2020. Suggest why 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 nq f8p,asjpz4)iaj0a1 1e cj;of the Ebola virus is single strand RNA. List two other forms that a pa1 z1p4iqej;jfa n,cs)8j0viral
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 th7gmdp565lrxv i: qp/t e Ebola virus

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