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自人类迈进二十一世纪以来，开发新能源成为全世界解决能源问题的共同出路。与化石燃料相比，新能源具有可再生、对环境友好等特点，更符合人类可持续发展的目标。其中，太阳能、风能、地热能、水能和潮汐能，是开发较早的新能源，已在实际生产生活中发挥了重要作用。曾一度被人们看好的核能，有着极高的能量值，可是其高额的研究经费和潜在的巨大危害，令世界大多数国家望而却步。而作为新能源中“排行”靠后的生物能源，却在最近几年内忽然人气锐增，势如破竹，被看成是“新能源家族中可实现度最高的未来能源”。
本段文字是一篇文章的引言，这篇文章接下来最有可能讲述的是（）。

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Support prices are based on parity, which is the ratio between the prices farmers receive for their crops and the prices they must pay for things they need. The government selected the period from 1910 to 1914 as a time when farm prices were in a fair ratio with farming costs. This is the base period now used to determine parity prices.
The idea is to assure farmers that what they get for a bushel of wheat will buy the same amount of, say, seed as it did in the years of the base period; if prices drop too far below this ideal the government can help in a number of ways. For example, it may buy much of a surplus at parity prices. Governments have instituted a wide variety of other controls for prices and, also, for farm output, mainly at the request of the farmers themselves. Farm prices tend to fluctuate more than other prices do, and the incomes of farmers fluctuate along with farm prices.
Various measures for maintaining farm prices and incomes include tariff or import levies, import quotas, export subsidies, direct payment to farmers, and limitations on production. All of these measures are useful and are used to some extent by most developed countries. An important example of such a program is the soil-bank plan, which aimed at limiting production while improving farmland.
The European Economic Community (EEC) established a common agricultural policy (CAP) for its member nations, called the Common Market countries. The aim is to create free trade for individual commodities within the community. When production of a commodity exceeds EEC consumption, the EEC may buy the excess for storage, pay to have it reprocessed, or export it to countries outside the Common Market. In this way the EEC can maintain its members' farm prices at levels equal to or even higher than those in such market-competitive nations as the United States and Canada.
By saying that a country's agricultural surpluses often "complicate" its economy, the author means ______.

A. they throw the country into great disorder
B. they entail more expenditure on the part of the government
C. they usually involve direct governmental support price
D. the government has to set up special pricing systems

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股份有限公司的财务会计报告应当在召开股东大会年会的（）目前置备于本公司，供股东查阅。

下列各项中，属于主承销商在定价之前的工作有（）。

（）是指证券公司不能受理按有关法规规定不能参与证券交易的人的委托，也不能受理全权委托。