首页
登录
职称英语
The number of hospital emergency room visits by heroin users grew by more than 2
The number of hospital emergency room visits by heroin users grew by more than 2
游客
2025-02-26
43
管理
问题
The number of hospital emergency room visits by heroin users grew by more than 25 percent during the 1980s. Clearly, then, the use of heroin rose in that decade. The author’s conclusion is properly drawn if which one of the following is assumed?
选项
A、Those who seek medical care because of heroin use usually do so in the later stages of addiction.
B、Many heroin users visit hospital emergency rooms repeatedly.
C、The number of visits to hospital emergency rooms by heroin users is proportional to the incidence of heroin usage.
D、The methods of using heroin have changed since 1980, and the new methods are less hazardous.
E、Users of heroin identify themselves as such when they come to hospital emergency rooms.
答案
C
解析
本题应该注意的是:不是每一个服用了海洛因的人都到急诊室去就诊,因此要从急诊室这10年里海洛因服用者就诊的次数的增加,推出服用海洛因的整体人数都在增加,就必须指出到急诊室就诊的海洛因服用者与服用海洛因的总的人数之间的特定关系。在5个选项中只有(C)指出了这种特定关系,因此,正确选项为(C);其余四个选项都不是本题结论所依赖的假设。
转载请注明原文地址:http://tihaiku.com/zcyy/3973328.html
相关试题推荐
Thenumberofpeople85orolderintheUnitedStatesstartedincreasingdramati
Thenumberofpeoplediagnosedashavingacertainintestinaldiseasehasdroppe
11.UnitedStateshospitalshavetraditionallyreliedprimarilyonrevenuesfro
Twoexperimentalgardenplotswereeachplantedwiththesamenumberoftomatop
Despiteadramaticincreaseinthenumberofpeopleridingbicyclesforrecreati
Thenumberofundergraduatedegreesinengineeringawardedbycollegesandunive
In1980,forthefirsttime,thenumberofforeignerstouringtheUnitedStates
Thenumberofmountaingorillasisdecliningwithsuchrapiditythatthepopulat
Since1981,whenthefarmdepressionbegan,thenumberofacresoverseenbyprof
Upsetbytherecentdownturninproductionnumbersduringthefirsthalfofthe
随机试题
[originaltext]Didn’tyousubmitthereporttheotherday?(A)No,I’mstillwork
Idecidedtogetintouchwithhim______afterIreceivedhisletter.A、promptly
准工作状态时配水管道内充满用于启动系统的有压气体的自动喷水灭火系统是()。A.
含聚氧乙烯基团的非离子表面活性剂的特征值A.临界胶束浓度B.亲水亲油平衡值C.昙
抗原抗体形成明显沉淀物的条件是A.抗体多于抗原B.抗原多于抗体C.抗原抗体的质量
某二级耐火等级的3层养老院,老人住宿床位数80张,总建筑面积4000
人在每一瞬间,将心理活动选择了某些对象而忽略了另一些对象。这一特点指的是注意的(
可别小瞧了那些在路边沉默而低调的野生果树,它们是大自然赋予我们的珍贵自然遗产。自
青香薷的原植物是A.石香薷 B.青蒿 C.香薷 D.江香薷 E.茵陈
施工单位应当设立安全生产管理机构,按照国家有关规定配备专职安全生产管理人员。施工
最新回复
(
0
)