The H-2A visa has no numerical cap, unlike the H-2B visa for nonagricultural work, which is limited to 66,000 a year.

与非农业工作的 H-2B 签证（每年上限为是6.6万个）不同，H-2A 签证没有数量限制。

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As illustrated in figure 2b, a suddenly stretched film has a lower protein concentration and hence a higher local surface tension.

如图2 b中所示，在突然拉伸的薄膜上，有一处蛋白质含量少而且局部表面张力大的地方。

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TrES-2b may even represent a whole new class of exoplanet-a possibility Kipping and company hope to put to the test with Kepler, which has so far detected hundreds of planets outside our solar system.

TrES - 2b甚至可能代表了一类全新的外行星——基平和同事们希望用开普勒对这一可能性进行测试。到目前为止，开普勒已经在太阳系外发现了几百颗行星。

youdao

Good, so if I plug q2 = 0 into here, this term disappears and I just get a - c over 2b.

把q2=0代入到算式中,这部分就没有了,只剩/2b

耶鲁公开课 - 博弈论课程节选

How far along do I have to go drop off a - c when I have slope -2b?

斜率-2b的线还要经过哪个横坐标呢

耶鲁公开课 - 博弈论课程节选

What's that telling me is that if Player 2 chooses not to produce then Player 1's best response is a - c over 2b.

参与人2产量为0而参与人1最佳对策是,/2b,这能说明什么

耶鲁公开课 - 博弈论课程节选

Writing in the Lancet medical journal, researchers from The International Hepatitis Interventional Therapy Group report a new treatment for chronic HCV infection that uses a combination of interferon alpha-2b and a drug called ribavirin.

BBC: Better treatment for Hepatitis C

Currently a drug called interferon alpha-2b is given to patients for a 48-week period.

BBC: Better treatment for Hepatitis C

This analysis by Cassidy and other commentators neglects to consider there is an important problem with many of the current job related visas, including H-1B, H-2B, and H-2A: a potential immigrant is not simply permitted to work in this country, but only permitted to work for a specific employer who petitioned for the visa to hire them.

FORBES: How To Improve Immigrant Visas