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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 do viruses h. vf8ktl;p y 72dxzqin/;8xm-gey wt4 ave in common with living organis.x t dzw4tk7i2 q eylg;x /vmy-88pfn;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 complicatxn0t9l6mf2km9 ex /s oes the treatment of human viral infectio62mkfx9xmnole ts/0 9ns?

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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 relation*ach */ ;xr (in1i* gkbq:khdkship between thhb ( *k1n*kcr/xhi;dk: *iagqe 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 )ed5p 6n5 wkq f6b1gbq(l(plkare 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 inforo*zka,; c /vsemation but many structural features in common.oes,cv k/ ;za* What 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 contras2ntt)ztr//gb4 wq o1it the lytic cycle with the lysogenic cycle of viral infection of a host celnt2qz1g/rt /i 4b)owtl.
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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 numbk5iy aq81vjixt+44-. wbgchoh z+ va(er of cases 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 case of Ebola from 2000 to 2009 aij5c7(7 qctld .zpew b yp+5)was 1194. Calculate the total number of cases that occurred from 19btw)7p q jc7(e.z5y+lcia5 pd 90 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 h.hi b(pzun nnlq 68zv 67v4-rcases from 2000 to 2009 in comparison to 1990 to( h6.zzhq4u-ni6n vr np8v7bl 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 human2fw/ i t,tftfju ,/j/es in 1976. Suggest how the virus first appearedtt eft, fi/wj2,j/f u/ 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. mo ;/ b00agi2is1bbyemxz(cfr:y);c It was made widely available from 2020. Suggest why a vaccine against a viral infection may prove ineffectivey0 gr;1:mm2fiay0xbbe; soc/i c()bz 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 vibrdr)a ywmh32sylp 73.+e2 hr5l7vmbrus is single strand RNA. List two other forms thaasy2r3lmr+ v .7hb73 er 25lwpm)hydbt 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 shoa5 raj2t:vy;9zx bg ,9gmar7rws a particle of the Ebola virus

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