首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Only three strategies are available for controlling cancer: prevention, screening and treatment. Lung cancer causes more deaths
Only three strategies are available for controlling cancer: prevention, screening and treatment. Lung cancer causes more deaths
admin
2012-01-19
61
问题
Only three strategies are available for controlling cancer: prevention, screening and treatment. Lung cancer causes more deaths than any other types of cancer. A major cause of the disease is not【21】known; there is no good evidence that screening is much helpful, and treatment【22】in about 90 percent of all cases. At present, therefore, the main strategy must be【23】. This may not always be true, of course, as for some other types of cancer, research【24】the past few decades has produced (or suggested) some importance in prevention, screening or treatment.
【25】, however, we consider not what research may one day offer but what today’s knowledge could already deliver that is not being delivered, then the most practicable and cost-effective opportunities for【26】. premature death from cancer, especially lung cancer, probably involve neither screening nor improved【27】, but prevention.
This conclusion does not depend on the unrealistic assumption that we can【28】tobacco. It merely assumes that we can reduce cigarette sales appreciably by raising prices or by【29】on the type of education that already appears to have a【30】effect on cigarette assumption by white-collar workers and that we can substantially reduce the amount of tar【31】per cigarette. The practicability of preventing cancer by such measures applies not only in those countries,【32】, the United States of America, because cigarette smoking has been common for decades, 25 to 30 percent of all cancer deaths now involves lung cancer, but also in those where it has become【33】only recently. In China, lung cancer【34】accounts for only 5 to 10 percent of all cancer deaths. This is because it may take as much as half a century【35】the rise in smoking to increase the incidence to lung cancer. Countries where cigarette smoking is only now becoming widespread can expect enormous increase in lung cancer during the 1990’s or early in the next century,【36】prompt effective action is taken against the habit-indeed, such increase is already plainly evident in parts of the【37】.
There are four reasons why the prevention of lung cancer is of such overwhelming importance: First, the disease is extremely common, causing more deaths than any other type of cancer now【38】; Secondly, it is generally incurable; Thirdly, effective, practicable measures to reduce its incidence are already reliably known; and finally,【39】tobacco consumption will also have a substantial【40】on many other diseases.
选项
A、if
B、unless
C、provided
D、while
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/M8xd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
ThetwolanguagesMaltesepeoplespeakare______
Everyoneknowsthattaxationisnecessaryinamodernstate:【21】______it,itwouldnotbepossibletopaythesoldiersandpo
Whoisthespeaker?
Almosteverybodywantstoliveaslongaspossible.Andgiventheenormousstridesmadeinmedicineandthehealthsciencesduri
Duringthe1980s,unemploymentandunderemploymentinsomecountrieswasashighas90percent.Somecountriesdidnot【21】_____
Duringthe1980s,unemploymentandunderemploymentinsomecountrieswasashighas90percent.Somecountriesdidnot【21】_____
Mostpeoplewhotravellongdistancescomplainofjetlag(喷气飞行时差反应).Jetlagmakesbusinesstravelerslessproductiveandmorepr
Whatisitthatbringsaboutsuchanintimateconnectionbetweenlanguageandthinking?Istherenothinkingwithouttheuseof
WhyisLauraatthebicycleshop?
WhyisLauraatthebicycleshop?
随机试题
甲、乙、丙、丁四人出资设立A有限合伙企业(以下简称“A企业”),其中甲、乙为普通合伙人,丙、丁为有限合伙人。合伙企业存续期间,发生以下事项:(1)5月,合伙人丙同A企业进行了120万元的交易,合伙人甲认为,由于合伙协议对此没有约定,因此,有限合伙人丙不得
Idon’tknowwhysheavoids________heropiniononthesubject.
电能表的总线应用铜芯绝缘线,其最小截面规定为________mm2。
团队沟通
用回弹法检验水泥混凝土的强度,需测出碳化深度,当用1%酚酞酒精溶液滴在孔的内壁,发现该混凝土已碳化,碳化后的颜色是()。
某旧建筑物,其建造成本为45万元,重置成本为48万元,墙、地面破旧折旧为8万元,户型不好导致功能折旧为9万元,区位变化引起的经济折旧为5万元,则该建筑物现值为()万元。
案例五:李先生打算为刚上小学的儿子筹备大一的开支。他准备采用教育储蓄的方式进行。为此,他向理财规划师咨询有关问题。根据案例五,回答下列问题:利用教育储蓄的最长期限,李先生应当在他儿子( )时开立教育储蓄账户。
预先披露的招股说明书(申报稿)不是发行人发行股票的正式文件,不能含有(),发行人不得据此发行股票。
下列事项中,属于会计估计变更的是()。
Whichofthefollowingdoesthefirstparagraphimply?Whatdoestheauthorconclude?
最新回复
(
0
)