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标题: 六级练习2014.12.24 [打印本页]

作者: Rebecca949    时间: 2014-12-24 09:59     标题: 六级练习2014.12.24

[audio]http://sound.yywz123.com/tingbbs/cet6/cet620141224.mp3[/audio]



Research shows an evolution of HIV in the body. "We're getting a very good feel that the virus that (1)___________________________a bit from the virus that ultimately evolves after months and years of replication."
Dr. Fauci describes the virus initially transmitted as being "very restricted in its diversity, which interestingly, (2)___________________________than we would have thought. Now having said that, we haven't been successful in blocking anything right now, but the nature of the virus is something that is very important." Fauci will discuss the "brief window of opportunity and vulnerability" at this month's 18th International AIDS Conference in Vienna.
"Once the virus establishes itself and truly begins to replicate, it establishes what we call a reservoir that is almost impossible, with the tools that we have now, to eradicate."
Studying those early infections, Fauci says, could lead to insights for a better prevention and treatment of HIV/AIDS and the development of a vaccine. He says test results of a new microbicide will be released at the AIDS conference. (3)___________________________, but this candidate releases antiretroviral drugs.



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作者: herman_liu76    时间: 2014-12-27 21:41

transmit to individual is diffierent
mean make it even easily is it's block
perhelps microbicide has fail to block HIV
作者: susan.sui    时间: 2014-12-29 17:00

transmits to individuals is different
mean make it even easy to block
past microbicides have failed to block HIV




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