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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 9a n po2 ecz+yj1d/rz uba3wv -w2 guq,7r2fi/viruses have in common with living organisrj9i zuy ,a1unp7acwfz-w v d32/rqo2/2geb+ ms?

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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 treatment of human vira2upd*izik+0vg dk7i( l infectioi*v(p20ddg i zu+7kkins?

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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 de1 o5 ;g wffe 8cgso4vx.eog,/fscription of the relationship between the virus a;51e og.ow,osxgc e 4fg8v/ff nd 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 are strhybdafy2w+; fjzs12w9 bf: ; tuctures 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 manyu29hsfoi8v, )+1vst9 yhngiwy 7k 1e s structural features in common. What does this sugg9vv2 t e sn1gh1yk7,y ws9o u+fhiis)8est 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 the lyt asl; kr0xjcii,/g//ric cycle with the lysogenic cycle of viral infection of a host /ic;// s,ika r gxj0lrcell.
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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 inap,jrlix b*02 gm a5z9p ,mxm1 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 20)uw9udtm 2awjgh60 cd:: yb;q00 to 2009 was 1194. Calculate the total number of cases jwwt g9c)u0hma:d;:6d2b yq uthat 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 increasedwdh;a u bf:4cmz55j+ in the total number of cases from 2000 to 2009 in comparison to 1990 to 1999.54fh z+dwc m d5aj;u:b
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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 yr ,pr6/noo3 *;jxjotmk b6:ehow the virus first appy6np k 3 o/jem,6*tjb r:xor;oeared 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. It was made wideccl vy5v.911em6c szbly available from 2020. Suggest why a vacciv5c bmc61 s.e vylcz91ne 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 strarc7yk+.amocdka/ i)3yg ;)u qnd RNA. List two other forms t+.i); kkqy)muoaca ryg3cd 7/ hat 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 partils,o2 5d bzr2hrf* w.w30yjz ccle of the Ebola virus

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