It becomes necessary to achieve an energy-efficient medium-access protocol subject to power constraints and large scale, so it is also the one of key points in the research.

由于受到传感器网络节点数量巨大和能量有限的限制，设计一种节能的MAC协议是非常必要的，也是当前此领域的研究重点之一。

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This makes long-term investing in gold ETFs (for one year or longer) subject to a relatively large capital gains tax (maximum rate of 28%, rather than the 15% rate that is applicable to most other long-term capital gains).

FORBES: The Gold Showdown: ETFs Vs. Futures

It might be nice to think that people are, for one reason or another, different and not subject to the same rules those that govern other large datasets.

FORBES: Nate Silver, Jonah Goldberg And Conservatism's Intellectual Decline

You are given the following information. (a) In random testing, you test positive for a disease. (b) In 5% of cases, this test shows positive even when the subject does not have the disease. (c) In the population at large, one person in 1, 000 has the disease.

ECONOMIST: Getting the goat