单选题
发布日期:2020-12-11
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换汇成本是指某出口商品换回一单位外汇需多少元本国货币(人民币)成本。换言之,即用多少元人民币的“出口总成本”可换回单位外币的“净收入外汇”。
贸易,是买卖或交易行为的总称,通常指以货币为媒介的一切交换活动或行为。其活动范围,不仅包括商业所从事的商品交换活动,还包括商品生产者或他人所组织的商品买卖活动;不仅包括国内贸易,还包括国与国之间的国际贸易。在古代市场上,不仅有物质商品贸易,还有奴隶贸易。在现代市场上,除了有形的商品贸易外,还有技术、资金、信息、劳务,以及保险、旅游等无形的贸易活动。
“旅”是旅行,外出,即为了实现某一目的而在空间上从甲地到乙地的行进过程;“游”是外出游览、观光、娱乐,即为达到这些目的所作的旅行。二者合起来即旅游。所以,旅行偏重于行,旅游不但有“行”,且有观光、娱乐含义。中央纪委国家监委网站的相关统计数据显示,“中秋国庆期间违反中央八项规定精神问题监督举报曝光专区”近三年中通报了989起案例。其中,数量排名第五位的是公款国内旅游,109起。2021年,国内旅游总人次32.46亿,同比增长12.8%。国内旅游收入(旅游总消费)2.92万亿元,同比增长31.0%。
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一般DN150消防水泵接合器的通水能力为101/s。
Passage1 Questions 1 to 5 are based on the following passage. It's interesting that the arrival of snow has the effect on people in different countries.(76) For some countries it is an important happening to celebrate each year, while for others a catastrophe (灾害) or even a wonder. But there are countries between these two kinds that normally expect snow some time over the winter months, but never receive snow regularly or in the same quantities every year.Britain is one of them, for which the arrival of snow quite simply creates problems.Within hours of the first snowfalls, however light, roads are blocked; trains and buses have to stop in the middle of the way.Normal communications are affected as well: telephone calls become difficult and the post immediately takes more time than usual.And almost within hours there are also certain shortages-bread, vegetables and other things-not because all these things can no longer be produced or sent to shops,but mainly because people are frightened and go out and store up with food and so on...just for fear that something bad should happen. But why does snow have this effect? After all, the Swiss, the Austrians and the Canadians don't have such problems.It is simply because there is not enough planning and preparation.We need money to buy equipment to deal with snow and ice.To keep the roads clear, for example,requires snow-ploughs (扫雪机) and machines to spread salt.(77) The reason why a country like Britain does not buy snow-ploughs is that they are only used for a few days in any one year, and the money could be more useful in other things such as hospitals, education, helping the old, and so on.3 After a few hours' snowing there are often some shortages of food because______.
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