首页
登录
职称英语
In 1987, H. I. V/AIDS joined a list of diseases that could keep a person out
In 1987, H. I. V/AIDS joined a list of diseases that could keep a person out
游客
2025-03-28
21
管理
问题
In 1987, H. I. V/AIDS joined a list of diseases that could keep a person out of the linked States. The government later tried to cancel its decision, but Congress made the travel ban a part of immigration law. People with H. I. V. , the virus that causes AIDS, could seek an exception, but that meant extra work.
Last year, Congress and President George W. Bush began the process of ending the travel ban. Now President Obama is finishing the process.
BARACK OBAMA: "We talk about reducing the stigma of this disease, yet we have treated a visitor living with it as a threat. We lead the world when it comes to helping stem the AIDS pandemic, yet we are one of only a dozen countries that still bar people with H. I. V. from entering our country" .
A final rule published Monday will end the travel ban effective January fourth. H. I. V. will no longer be a condition that can exclude people. And H. I. V. testing will no longer be required for those who need a medical examination for immigration purposes. AIDS has killed more than twenty-five people since the early 1980s.
In September, there was news that a vaccine showed some ability to prevent H. I. V. infection in humans for the first time. The full results of the vaccine study were presented in later October at an international conference in Paris. They were also reported in the New England Journal of Medicine. The researchers confirmed that the study in Thailand produced only "modest" results.
The United States Army sponsored the vaccine trial. The study combined two vaccines, using versions of H. I. V. common in Thailand. Neither vaccine alone had shown success in earlier studies.
Thai researchers tested the combination in more than 16,000 volunteers. Half of the volunteers got the vaccine. The other got a placebo, an inactive substance. All were given condoms and counseling on AIDS prevention for three years. The study found 31 percent fewer cases of infection in the vaccine group than in the placebo group.
But critics said the findings could possibly have resulted from chance. The announcement in September was based on all 16,000 volunteers. Almost one-third of them, however, didn’t follow all the required steps in the study. Results just from those who did were similar to the larger group, but the influence of chance was more of a possibility.
Still, the researchers said the study produced enough valuable information to offer new hopes for AIDS research. [br] According to the critics, the findings of the test______.
选项
A、has produced enough valuable information
B、should not be taken seriously
C、has produced reliable statistics
D、has paved a solid foundation for further research
答案
B
解析
根据文章第八段第一句话“但是批评者称,该研究结果可能只是偶然”可知,结果存在偶然性,由此可判断本题选B。
转载请注明原文地址:https://tihaiku.com/zcyy/4016713.html
相关试题推荐
TherearemanyreasonsforapersonplanningtodoPhDresearch(forexample,
In1987,H.I.V/AIDSjoinedalistofdiseasesthatcouldkeepapersonout
In1987,H.I.V/AIDSjoinedalistofdiseasesthatcouldkeepapersonout
WearesorrytosaythatMaryisnottheverypersonwhocanbe______witheither
Stopaskingallthesepersonalquestions!Itisbadmannerstobe______.A、inquis
Don’tcallhimjustacollegeprofessor.Internetentrepreneur,TVpersonali
Don’tcallhimjustacollegeprofessor.Internetentrepreneur,TVpersonali
Don’tcallhimjustacollegeprofessor.Internetentrepreneur,TVpersonali
Pronouncingalanguageisaskill.Everynormalpersonisexpertintheskil
Pronouncingalanguageisaskill.Everynormalpersonisexpertintheskil
随机试题
Youclaimthat______travellingbyboatIamwastingpartofmyholiday:onthe
Mostpeoplewouldbeimpressedbythehighqualityofmedicineavailableto
[originaltext]Youshouldnotfearspidersbecauseoftheirpoison.Ofallt
下列几个因素中,哪些与冷却产生的自然作用压力有关?()A.并联环路之间的高差
生物安全柜在进行清洁、消毒等操作时,叙述错误的是A.每天操作结束后需要清洗回风槽
一般均衡只有在完全竞争的市场经济条件下才有可能实现。()
A.7年、7年 B.7年、10年 C.10年、10年 D.20年、30年
某医生用拔牙钳先后拔除上颌中切牙和侧切牙时,发现他在同样施用旋转的方式,而且拔牙
某企业的本月发生的广告费10000元,按照会计核算的要求,该笔费用应当计入()。
患者男性,35岁,因食用不洁食物后腹泻到医院就诊。经医师检查、检验,诊断为急性肠
最新回复
(
0
)