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提问人:网友cynf0423 发布时间:2022-01-07
[主观题]

Leontief tested H-O theory with the data from USA and concluded that the USA exported capital-intensive commodites.

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更多“Leontief tested H-O theory with the data from USA and concluded that the USA exported capital-intens…”相关的问题
第1题
New Attempts to Eradicate AIDS VirusA high-profile attempt to eradicate the AIDS virus in

New Attempts to Eradicate AIDS Virus

A high-profile attempt to eradicate the AIDS virus in a few patients continues to show promise.

But researchers won't know for a year or more whether it will work, scientist David Ho told journalists here Wednesday for the Fourth Conference in Viruses and Infections.

"This is a study that's in progress," says Ho, head of the Aaron Diamond AIDS Research Center, New York.

The study involves 20 people who started combinations of anti-HIV drugs very early in the course of the disease, within 90 days of their infections. They've been treated for up to 18 months. Four others have dropped out because of side effects or problems complying with the exacting drug system.

The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining patients, s And, in the latest development6, scientists have now tested lymph nodes and semen from a few patients and found no virus reproducing there, Ho says. "Bear in mind that? undetectable does not equal absent," Ho says.

Ho has calculated that the drugs should be able to wipe out remaining viruses -- at least from known reservoirs throughout the body -- in two to three years. But the only way to prove eradication would be to stop the drugs and see if the virus comes back8. On Wednesday, Ho said he wouldn't ask any patient to consider that step before 2years of treatment.

And he emphasized that he is not urging widespread adoption of such early, aggressive treatment outside of trials9. No one knows the long-term risks.

But other scientists are looking at similar experiments. A federally funded study will put 300 patients on triple-drug treatments and then see if some responding well after six months can continue to suppress the virus on just one or two drugs, says researcher Douglas Richman of the University of California, San Diego. Some patients in that study also may be offered the chance to stop therapy after 18 months or more, he says.

According to the passage, the attempt to eradicate the AIDS virus

A.continues to be hopeful.

B.will be successful in a year.

C.will be successful in future.

D.will stop being hopeful.

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第2题
New Attempts to Eradicate AIDS Virus A high-profile attempt to eradicate the AIDS virus in

New Attempts to Eradicate AIDS Virus

A high-profile attempt to eradicate the AIDS virus in a few patients continues to show promise.

But researchers won't know for a year or more whether it will work, scientist David Ho told journalists this Wednesday for the Fourth Conference in Viruses and Infections.

"This is a study that's in progress," says Ho, head of the Aaron Diamond AIDS Research Center, New York.

The study involves 20 people who started combinations of anti-HIV drugs very early in the course of the disease, within 90 days of their infections. They've been treated for up to 18 months. Four others have dropped out because of side effects or problems complying with the exacting drug system.

The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining patients. And, in the latest development, scientists have now tested lymph nodes and semen from a few patients and found no virus reproducing there, Ho says. "Bear in mind that undetectable does not equal absent," Ho says.

Ho has calculated that the drugs should be able to wipe out remaining viruses — at least from known reservoirs throughout the body — in two to three years. But the only way to prove eradication would be to stop the drugs and see if the virus comes back. On Wednesday,' Ho said he wouldn't ask any patient to consider that step before 2 years of treatment.

And he emphasized that he is not urging widespread adoption of such early, aggressive treatment outside of trials. No one knows the long-term risks.

But other scientists are looking at similar experiments. A federally funded study will put 300 patients on triple-drug treatments and then see if some responding well after six months can continue to suppress the virus on just one or two drugs, says researcher Douglas Richman of the University of California, San Diego. Some patients in that study also may be offered the chance to stop therapy after 18 months or more, he says.

According to the passage, the attempt to eradicate the AIDS virus ______.

A.continues to be hopeful

B.will be successful in a year

C.will be successful in future

D.will stop being hopeful

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第3题
【单选题】_______are statements of feelings, beliefs, attitudes, or judgments and they can’t be objectively tested or proven.

A.Facts

B.Key words

C.Stories

D.Opinions

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第4题
Pseudoscientific ideas are not tested, or are not testable. [T/F]
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第5题
Once you ______ the country life, you won't want to live in the city. A.have tested B.have tr

Once you ______ the country life, you won't want to live in the city.

A.have tested B.have tried C.have sampled D.have checked

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第6题
Every Bosch built-in oven will be tested in the factory.A.RightB.WrongC.Doesn't say

Every Bosch built-in oven will be tested in the factory.

A.Right

B.Wrong

C.Doesn't say

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第7题
假设检验水准α=0.05,计算t=1.5,结论是A.根据自由度下结论B.拒绝Ho,接受H1C.接受HoD.不能下结论E.

假设检验水准α=0.05,计算t=1.5,结论是

A.根据自由度下结论

B.拒绝Ho,接受H1

C.接受Ho

D.不能下结论

E.以上都不是

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第8题
当求得t=t0.05(n′)时,结论为A.P=0.05,正好在临界水平上,重复实验,接受Ho的可能性较大B.P=0.05,接

当求得t=t0.05(n′)时,结论为

A.P=0.05,正好在临界水平上,重复实验,接受Ho的可能性较大

B.P=0.05,接受Ho,差异无显著性

C.P>0.05,拒绝Ho

D.P<0.05,接受Ho

E.P=0.05,拒绝Ho,差异有显著性

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第9题
· They are innovators who don't need to follow the tried and (3)______ route.

A.totally new

B.smooth

C.planned

D.tested

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第10题
When taking drugs, it is the ____________ who should be especially watchful, for chugs usu
ally aren't tested on these groups of people.

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