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根据《民事诉讼法》,申请仲裁裁决强制执行的期间为()。【2011年考试真题】

A. 6个月
B. 1年
C. 2年
D. 3年

考虑下列期权资产组合。投资者以执行价格85美元卖出4月份IBM的看涨期权。以执行价格80美元卖出4月份微软看跌期权。 a.画出期权到期时该资产组合的收益与IBM股价的关系图。 b.如果IBM在期权到期日的售价为23美元。该头寸的利润/损失是多少?如果IBM售价为90美元呢?根据图20—2中(《华尔街日报》上的行情来回答这一问题。 c.投资者盈亏均衡时的两个股价临界点是多少? d.这个投资者“赌”的是什么?也就是说。投资者之所以有这样的投资,是因为他对微软的股价有怎样的预期?

考虑下列资产组合,按执行价90美元卖出一份看跌期权。执行价95美元买入一份看跌期权。标的股票与到期日都相同。 a.画出期权到期日时该资产组合的价值。 b.在同一张图上,画出该资产组合的利润。哪种期权的成本较高?

This week, the flagship of that effort, the Global Seed Vault near here, received its first seeds, millions of them. Bored into the middle of a frozen Arctic mountain topped with snow, the vault? s goal is to store and protect samples of every type of seed from every seed collection in the world.
As of Thursday, thousands of neatly stacked and labeled gray boxes of seeds — peas from Nigeria, corn from Mexico — reside in this glazed cavelike structure, forming a sort of backup hard drive, in case natural disasters or human errors erase the seeds from the outside world.
Descending almost 500 feet under the permafrost, the entrance tunnel to the seed vault is designed to withstand bomb blasts and earthquakes. An automated digital monitoring system controls temperature and provides security akin to a missile silo or Fort Knox. No one person has all the codes for entrance.
The Global Vault is part of a broader effort to gather and systematize information about plants and their genes, which climate change experts say may indeed prove more valuable than gold. In Leuven, Belgium, scientists are scouring the world for banana samples and preserving their shoots in liquid nitrogen before they become extinct. A similar effort is under way in France on coffee plants. A number of plants, most from the tropics, do not produce seeds that can be stored.
For years, a hodgepodge network of seed banks has been amassing seed and shoot collections in a haphazard manner. Labs in Mexico banked corn species. Those in Nigeria banked cassava. Now these scattershot efforts are being urgently consolidated and systematized, in part because of better technology to preserve plant genes and in part because of the rising alarm about climate change and its impact on world food production.
“We started thinking about this post-9/11 and on the heels of Hurricane Katrina,” said Cary Fowler, president of the Global Crop Diversity Trust, a nonprofit group that runs the vault. “Everyone was saying, why didn? t anyone prepare for a hurricane before? We knew it was going to happen.“Well, we are losing biodiversity every day — it? s a kind of drip, drip, drip. It? s also inevitable. We need to do something about it.”
This week the urgency of the problem was underscored as wheat prices rose to record highs and wheat stores dropped to the lowest level in 35 years. A series of droughts and new diseases cut wheat production in many parts of the world. “The erosion of plants? genetic resources is really going fast,” said Dr. Rony Swennen, head of the division of crop biotechnology at the Catholic University of Leuven in Belgium, who has preserved half of the world? s 1,200 banana types. “We? re at a critical moment and if we don? t act fast, we? re going to lose a lot of plants that we may need.”
The United Nations International Treaty on Plant Genetic Resources, ratified in 2004, created a formal global network for banking and sharing seeds, as well as for studying their genetic traits. Last year, its database received thousands of new seeds.
A system of plant banks could be crucial in responding to climate crises since it could identify genetic material and plant strains better able to cope with a changed environment.
Here at the Global Vault, hundreds of gray boxes containing seeds from places ranging from Syria to Mexico were moved this week into a freezing vault to be placed in suspended animation. They harbor a vast range of qualities, like the ability to withstand drier, warmer climate.

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