首页
登录
职称英语
Despite the fact that today viruses are known to cause cancerin animals and
Despite the fact that today viruses are known to cause cancerin animals and
游客
2023-12-12
59
管理
问题
Despite the fact that today viruses are known to cause cancer
in animals and in certain plants, where exists a great reluctance (1)______
to accept viruses as been of importance in human cancer. Basic (2)______
biological phenomena generally does not differ strikingly as (3)______
one goes from one species to other. It should be recognized that (4)______
cancer is a biological problem and not a problem that is unique
for man. Cancer originates when a normal cell suddenly becomes
a cancer cell which multiplies widely and with apparent restraint. (5)______
Cancer cells originate in many different kinds of cell, but the
cancer cell usually continues to carry certain traits of the cell of
origin. The transformation of a normal cell to a cancer cell may (6)______
have more than one kind of cause, but there’s good reason to
consider the relationships exist between viruses and cancer.
Since there’s no evidence which human cancer, as generally (7)______
experienced, is infectious, many person believe that because (8)______
viruses are infectious agents, they can possibly be of important in (9)______
human cancer. Furthermore, viruses and examples are known in
which a virus never kills its host can mutate to form a new strain (10)______
of virus that always kills its host. It does not seem unreasonable
to assume that an innocuous latent virus might mutate to form a
strain that causes cancer. [br]
选项
答案
where—there
解析
where一般用来引导定语从句或状语从句;经分析分句中缺少主语,故将where改成there,there exits是there be句型的变体。
转载请注明原文地址:https://tihaiku.com/zcyy/3268224.html
相关试题推荐
WhoarementionedtoprotecttheendangeredanimalsinsomeAfricancountries?[
Everyyear,millionsofanimalsundergopainfulsufferingordeathasares
Everyyear,millionsofanimalsundergopainfulsufferingordeathasares
Everyyear,millionsofanimalsundergopainfulsufferingordeathasares
Everyyear,millionsofanimalsundergopainfulsufferingordeathasares
Everyyear,millionsofanimalsundergopainfulsufferingordeathasares
Kangaroosandemus,thelargestnativedesertanimals,cansurvivein______con
Despitethefactthattodayvirusesareknowntocausecancerinanimalsand
Despitethefactthattodayvirusesareknowntocausecancerinanimalsand
Despitethefactthattodayvirusesareknowntocausecancerinanimalsand
随机试题
【B1】[br]【B5】A、goodB、betterC、thebestC上下文指:游泳是锻炼身体的最好形式之一。
Joanworkedinahospitalasanurse.Oneeveningtherewasabigdanceattheh
JoinUsYouarecordiallyinvitedto
Hefeltitwouldbe(i)______,inviewoftheintense(ii)______thatwouldlike
Completethesentencesbelow.WriteONEWORDAND/ORANUMBERforeachanswer.Mo
[originaltext]Howoftendoyousaytopeople“I’mbusy”or“Ihaven’tgottime
Hefollowsastrictworkscheduleeverydayandrarely______fromtheroutine.A
下列支出中,属于企业管理费用的有( )。A.违约金 B.无形资产摊销 C.
抗原与抗体发生交叉反应是因为A.抗原与抗体的形状相似 B.抗原与抗体的比例合适
CH50试验的终点指标是()。A.25%溶血 B.50%溶血 C.75%溶
最新回复
(
0
)