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[填空题]New Hopes for Preventing AIDS
The success of anti-retroviral (抑止肿瘤病毒) drugs in treating HIV is getting researchers at the 16th International AIDS conference excited at the prospect that the potent medicines might be exploited to perform double duty. Why not use the power of these ARVs to prevent an HIV transmission or infection from taking hold in the first place Bill and Melinda Gates asked that provocative question on the opening day of the conference, and are committing their considerable financial resources toward finding an answer. In their remarks, they highlighted the need to develop microbicides and oral-prevention drugs while we wait for a vaccine. And they will get their first hint at how smart their decision was this Thursday, when scientists from West Africa report the initial results from the first trial studying an oral prevention drug.
So how realistic are the Gates in expecting even more from the ARVs "I do think the range of prevention options we
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{{B}}New Hopes for
Preventing AIDS{{/B}}
The success of anti-retroviral (抑止肿瘤病毒)
drugs in treating HIV is getting researchers at the 16th International AIDS
conference excited at the prospect that the potent medicines might be exploited
to perform double duty. Why not use the power of these ARVs to prevent an HIV
transmission or infection from taking hold in the first place Bill and Melinda
Gates asked that provocative question on the opening day of the conference, and
are committing their considerable financial resources toward finding an answer.
In their remarks, they highlighted the need to develop microbicides and
oral-prevention drugs while we wait for a vaccine. And they will get their first
hint at how smart their decision was this Thursday, when scientists from West
Africa report the initial results from the first trial studying an oral
prevention drug.
So how realistic are the Gates in expecti
[单项选择]______contributed most to the success of the new study of Mount Everest
A. Detailed maps from previous studies
B. Recent advances in technology
C. Plenty of funding for the study
D. Experience carrying heavy loads up mountains
[单项选择]Success of New Rail Links in Europe
The Eurostar company is now running frequent train services using the tunnel built beneath the sea between Britain and France. Millions of passengers have already travelled on Eurostar trains and there are now twenty services a day between London and Paris and nine between London and Brussels.
Eurostar has already won 40% of all passengers from the UK to Paris and Brussels but further growth will depend on the business market. The early morning departure to Paris is proving popular, especially for business people from London who need to do a full day’s work in the French capital.
However. exactly how many of Eurostar’s passengers are business travellers is unknown. While first-class accommodation has been 70% fill, many of these passengers are travelling on holiday: one travel agent estimates Eurostar has only 20% of the business travel market. Meanwhile, tour operators report a sharp rise in the sale of short trips to Par
A. use lower capacity planes.
B. cut frequency.
C. offer cheaper tickets.
D. maintain the flight schedul
