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ug 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.

41. According to the passage, the attempt to eradicate the AIDS virus
A.hasn’t been made seriously
B.is appreciated by California University
C.continues to show promise
D.will be successful in two and a half years

42.Which is NOT true about Ho’s study?
A. 20 patients were involved in the study
B. The patients have used several anti-HIV drugs
C. 16 patients withdrew from the experiment
D. The patients have been treated for upto 18months

43.By saying “Bear in mind undetectable does not equal absent “.Ho means
A. AIDS virus can be undetectable in the blood.
B. No AIDS virus can be detected in the blood.
C. No virus found in the blood means no AIDS.
D. AIDS virus may exist in the blood without being detected

44.How do we prove that the drugs have wiped out the remaining viruses?
A. By using up all the drugs at once
B. By waiting for the virus todie slowly
C.By analyzing the treatment record thoroughly
D.By stopping the drugs andsee if the virus comes back

45.Other scientists are looking at experiments that are similar in that they are
A. the ways the patients aretreated
B. the size of the experiment
C. the cost of the experiment
D. the time the experiment takes

词汇：

1.crisp凉爽、清新= freshen                  2.update使更新、现代化= modernize

3.wipe out= destroyed 摧毁                4.take in= digest消化

5.contempt=hate 讨厌或轻视               6.tag=labels标签

7.steep=cheap

I think ￡7 for a drink is a bit steep,don’t you?

A. tight B.low C.cheap D. high

8.puzzle=confuse使困惑                    9. chant=repeat 重复说                     

10.utterly=completely完全地             11.inspire=encourage鼓励

12.severe=serious 严重                   13.layout=arrangement

14. assemble=gather                      15.hollow=empty

 

 

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