Conduct pricing and verification of EU quota by adopting B-S model.

利用B - S模型对欧盟配额进行定价校验。

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In May OPEC pumped 29m barrels a day (b/d) of oil (including Iran, which is not in the quota system) whereas official quotas, last formally changed in 2007, stand at 24.8m b/d.

五月份，欧佩克日产石油为2900万桶（其中也包括了伊朗的产量，但该国不参与石油配额机制），而官方配额上次在2007年正式调整后一直保持在日产量在2480万桶。

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If you are included in the current year's quota, usually you will get your H1-B visa in three or four months.

如果你是列入本年度的限额，通常你会在三，四个月的H1 - B签证。

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The quota for H1-B visas filled up immediately last April leaving June graduates stuck with no recourse but to find work in other countries.

NPR: Bill Gates Targets Visa Rules for Tech Workers

Earlier this month, U.S.-based employers exhausted the annual 65, 000-person quota for H1-B visas within days of the opening of applications, a sign of the strengthening domestic economy.

WSJ: Indian IT Workers in Cross Hairs of U.S. Bill

H1-B visa has been introduced in Canada with no quota requirement whatsoever.

ECONOMIST: Technology v politics