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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 have in commo 8 z,edl+pl9rdi wz;;hn with living organisms?+ ll8wzp 9,h;d rzi;ed

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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 factorpl6 -0rbt)+xz mm6cgl s complicates the treatment of human viral infectiol z -+ r0)ml6cpxmbt6gns?

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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 relationship x/wzs4 - bu*hpz x3)eqbetween the virp x/-4z)uwhez s3*qxb us 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 are structures thaqbje*;mbc3*hv) bn 9a;3ur oit 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 structural featerr5k s2n (gl;ures in common. What does this suggest in ter( e5l;2rn rkgsms 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 lytic cycle with the lysogenic cycle of vira66, z hwf1nl5d* 9 crmil/sq+f hm+jqbl infectioqm6rbscqz 6fi15h f *d, +/hwjl9m+lnn of 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 1976. jk ( e)vuo7rlxpl.ate5rs+dyv:m;6-1977.
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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 1194.wy4:r8k v b lfv, rf)eg1a+vl. Calculate the total numbe elw+k.vv,ar8y: ffg4lr ) b1vr 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 numbxw-f p*1:4vapf i.pyfgh .t ws22pxqbg5 /:frer of cases from 2000 to 2009 in comparison to 1990 to 199sxh tfw2p:1pr.4f*fbg5w ./iq2 a vp xg p:fy-9.
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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 the vu0o 7f;og w1t* 3esbgeirus first appeared in thee;3eg *osot71g 0buwf
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 wi vnt5)vtn 71z 2th7elvdely available from 2020. Suggest why a vacnt7) 1 zvte l57vtvnh2cine 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 viru1aqk6 *zi/ bados5yd4s is single strand RNA. List two other formdybsa 5a io4qd z6k/*1s 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 q:k)yc4 k yar/;4xk pra particle of the Ebola virus

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