题目内容
近年来，不少国家纷纷实施“人与生物圈计划”，目的就是为了寻求同一个答案。为什么人类在享受自己获得和创造的财富时，会不时受到大自然种种惩罚因为人类在土壤侵蚀、沙漠化、滥伐森林、越来越多的物种灭绝、环境污染等所导致的生态系统退化中，逐步意识到自身还没有真正揭开人与生物圈之问的秘密。 这段话中“秘密”一词具体指的是( )。
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TEXT C When companies do business overseas, they come in contact with people from different cultures. These individuals often speak a different language and have their own particular custom and manners. These differences can create problems. For example, in France, business meetings begin promptly at the designated time and everyone is expected to be there. Foreign business people who are tardy are often left outside to cool their heels as a means of letting them know the importance of promptness. Unless one is aware of such expected behaviors he may end up insulting the people with whom he hopes to establish trade relations. A second traditional problem is that of monetary conversions. For example, if a transaction is conducted with Russia, payment may be made in rubles. Of course, this currency is of little value to the American firm. It is, therefore, necessary to convert the foreign currency to American dollars. How much are these Russian rubles worth in terms of dollars This conversion rate is determined by every market, where the currencies of countries are bought and sold. Thus there is an established rate, although it will often fluctuate from day to day. For example, the ruble may be worth ’0.75 on Monday and ’0.72 on Tuesday because of an announced wheat shortage in Russia. In addition, there is the dilemma associated with converting at ’0.72. Some financial institutions may be unwilling to pay this price, feeling that the ruble will sink much lower over the next week. As a result, conversion may finally come at ’0.69. These "losses" must be accepted by the company as one of the costs of doing business overseas. A third unique problem is trade barriers. For one reason or another, all countries impose trade barriers on certain goods crossing their borders. Some trade barriers are directly related to exports. For example, the United States permits strategic military material to be shipped abroad only after government permission has been obtained. Most trade barriers, however, are designed to restrict import. Two of the most common import barriers are quotas and tariffs. In France, tardy business people ______.
滚涂法的特点是适用于大面积或大批量的平面涂装工程，其生产效率高，涂层均匀，节省稀释剂，能采用高黏度涂料一次涂装达到所需要的涂层厚度。( )
TEXT HLeighton SchoolSCHOOL RULESEVERY PUPIL IN THE SCHOOLS OLD ENOUGH TO HAVE A SENSE OR RESPONSIBILITY. WE DEPEND ON YOUR GOOD MANNERS, COMMON SENSE AND CO-OPERATION.1. Pupils must bring the correct books and writing materials to each lesson.2. Other items, for example, P.E. Kit, must be brought to practical lessons.3. Eating and drinking in classrooms is forbidden. Chewing gum must not be brought to school.4. Pupils must not bring valuables to schools, e.g. radios, tape recorders or jewellery. Money should be kept in purse belts and large sums must be handed to the Office.5. The correct school uniform must be worn. Outdoors coats are not be worn in school.6. Pupils must keep to the right in the corridors and on the stairs; they must move quietly around the staff on duty.7. Pupils are not permitted to go to the Staff room during the lunch break. There is always a member of staff on duty.8. Pupils having lunch in school are not allowed to leave the school premises without a printed permission slip. Pupils in the school can ______
TEXT G Savor The Savor return is our most flexible leisure ticket. It can be used on all trains on Saturdays, Sundays and public holidays. On Mondays and Fridays it can be used on most trains except some peak trains. Conditions of travel - You must book your ticket at least seven full days before you start your journey. - You must return within thirty-one days. - Break of journey is not allowed. - There are no reductions on Savor return tickets for children under the age of sixteen. - Savor return tickets are only available for journeys over fifty miles. You must book your Savor return ticket ______ days in advance.
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