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发行人子公司如对发行人的业务经营有重大影响，保荐机构可对该子公司单独编制工作底稿。（）
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某环形截面钢筋混凝土烟囱，如图所示，烟囱基础顶面以上总重力荷载代表值为18000kN，烟囱基本自振周期T1=2.5s。 假定[上题]烟囱建于设防烈度为8度地震区，设计基本地震加速度为0.2g，设计地震分组第二组，场地类别Ⅲ类。试问，采用简化方法进行抗震计算时，烟囱底部（基础顶面处）由水平地震作用标准值产生的剪力（kN）最接近下列何项数值（）.
The producers of instant coffee found their product strongly resisted in the market places despite their product’s manifest advantages. Furthermore, the advertising expenditure for instant coffee was far greater than that for regular coffee. Efforts were made to find the cause of the consumers’ seemingly unreasonable resistance to the product. The reason given by most people was dislike for the taste. The producers suspected that there might be deeper reasons, however. This was confirmed by one of motivation research’s classic studies, one often cited in the trade. Mason Haire, of the university of California, constructed two shopping lists that were identical except for one item. There were six items common to both lists: hamburger, carrots, bread, baking powder, canned peaches, and potatoes, with the brands or amounts specified. The seventh item, in fifth place on both lists, read "1 lb. Maxwell House Coffee" on one list and "Nestle Instant Coffee" on the other. One list was given to each one in a group of fifty women, and the other list to those in another group of the same size. The women were asked to study their lists and then to describe, as far as they could, the kind of women ("personality and character") who would draw up that shopping list. Nearly half of those who had received the list including instant coffee described a housewife who was lazy and a poor planner. On the other hand, only one woman in the other group described the housewife, who had included regular coffee on her list, as lazy; only six of that group suggested that she was a poor planner. Eight women felt that the instant-coffee user was probably not a good wife! No one in the other group drew such a conclusion about the housewife who intended to buy regular coffee. According to the passage, most people said they didn’t like instant coffee because ______.
41)__________. The mystery involves a change in the atmoshpere—a hole, or thinning, of the ozone in the atmosphere over Antarctica. Scientists were not sure what was causing it.42) __________. It is found both in the air we breathe and in the upper atmosphere. Near the earth, ozone in the air is a danger to life. It is a pollutant. But ozone found 10 kilometers to 50 kilometers up in the atmosphere protects life on earth. Ozone forms in the atmosphere through the action of solar radiation. Once formed, the ozone blocks harmful radiation from reaching the earth. Scientists say a decrease in ozone and an increase in the harmful radiation will cause many more cases of skin cancer and will harm crops, animals and fish.43) __________.Chlorine is released into the air from the chlorofluorocarbons—or CFCs—used in plastic, air conditioners and spray cans. The use of CFCs has greatly increased worldwide since 1960 and is continuing to increase. The destruction of the ozone in the atmosphere also has increased.An international effort is being made to halt the loss of atmospheric ozone. But many experts fear the effort will not produce results fast enough to prevent harm to life on earth. Thirty-one nations negotiated a treaty last year (1987) calling for a reduction in the worldwide production of chlorofluorocarbons. It was praised at the time as a major step in halting further destruction of the ozone. Cuts in the present production of CFCs will begin in the mid-1990s.44) __________.Harmful chemicals take from 7 to 10 years to rise up into the atmosphere. Damage from the increase use of CFCs in this past decade still has not been felt. Government scientists say more than two times the mount of these gases will be in the atmosphere before the levels stop rising.45) __________. Scientists point out a molecule of chlorine remains in the atmosphere for as long as 100 years. During that time, it destroys tens of thousands of ozone molecules.[A] Why has the ozone problem developed No one knows for sure. But scientists say the evidence is very strong that the chlorine in chlorofluorocarbons (含氯氟烃)is causing much of the problem.[B] Almost 30 years after scientists discovered that common industrial gases were destroying Earth’s protective ozone layer, satellite readings and ground observations show for the first time that the dangerous rate of ozone loss is finally slowing.[C] Ozone is a three-atom form of oxygen gas.[D] There have been some new developments in a continuing mystery we have reported about many times.[E] Scientists also say damage to ozone will continue because of the long life of the chemical gases released into the atmosphere.[F] The ozone problem caused by CFCs was first noticed as early as the 1960s.[G] However, most scientists now agree destruction of the ozone will continue for decades. They say this will happen even though industries and governments do their best to control the damage. 43
With the rapid growth of China’s economy in recent years, China’s foreign trade has begun a number of new pragmatic and flexible practices in foreign trade policy, open door policy and foreign trade system.46)In the first place, China’s foreign trade policy is coupled with China’s domestic economic reform program. 47)Import policy is aimed at acquiring capital that embodies the modern technology needed to develop China’s economy. 48)China’s export capability is expanding due to the improvement of the importation of foreign capital, technology and management skills. According to the figures issued by China’s Ministry of Foreign Economic Relations and Trade(MOFERT), the total value of imports and exports is increasing steadily.Next, the rapid growth of China’s economy needs "Open Door Policy". The key to this policy is to open China to inflows of foreign technology and foreign investment. Toward this end, the Chinese established "special economic zones" in 1979, where special incentives are being used to attract foreign capital and technology. Four such zones were set up, three in Guangdong Province, and one in Fujian Province. 49)With the establishment of four special economic zones, "economic and technical development zones" were set up in 14 coastal cities in 1980, and as the next step, the Chinese have announced that they will open up several river delta regions, including the Changjiang River delta and the Pearl River delta.Thirdly, China’s foreign trade system has undergone significant changes in the last few years. Although foreign trade is still carried out by the Foreign Trade Corporation (FTC), supervised by the Ministry of Foreign Economic Relations and Trade, China’s industrial departments and provincial and local enterprises have taken a more active role in China’s foreign trade. Many of these organizations have established import and export corporations of their own, with the authority to conduct technical and commercial negotiations with foreign firms. Industrial corporations are responsible for their own profits and losses. Certain plants and factories are also permitted to have more contact with foreign firms and authority to negotiate sales contracts by themselves.50)The decentralizatoin of China’s foreign trade has benefited foreign trade organizations at different levels, cities, provinces and autonomous regions where the foreign trade has therefore been better handled. With the establishment of four special economic zones, "economic and technical development zones" were set up in 14 coastal cities in 1980, and as the next step, the Chinese have announced that they will open up several river delta regions, including the Changjiang River delta and the Pearl River delta.
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