提供防治艾滋病领导力建设的可行性模式。
Provide leaders a feasibility model of leadership development of AIDS prevention and control.
这种模式的可行性在于持续增长的需求，多来自于想要快速获得资本收益的投机商人。
The viability of this model depends on ever-growing demand, which often comes from speculative investors looking for a chance of quick capital gains.
其结果就是，XM和Sirius正试图寻求合并的可能，尽管有不少人质疑卫星广播这一业务模式的长期可行性。
As a result, XM and Sirius are now attempting to consummate a merger amid some skepticism about the long-term viability of the satellite radio business model.
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