单项选择题 This Month's ExhibitionName: Scientific and Technological Inventions since Second World War Time: 8: 30-16: 00, from Monday to Friday, September Place: Exhibition Center, St. Loais Fare: 2. 5 dollars Limitation: 120 persons /day Corporate visit should make an appointmentE-mail: club@exhibition stl@gnail. comTo: Reception Office, Exhibition Center, St. Louis From: TPR Software CompanySubject: Make an appointment for visiting the Exhibition on Scientific and Technological InventionsLadies or gentlemen, We were very pleased to learn from the local media that many important and valuable inventions of science and technology made since the Second World War are now on display in your exhibition hall. We all know that there have been a large number of scientific and technical achievements, the application of which has been a large changing our total view of the world. The past six decades in particular have witnessed the birth of many new theories. They deal with almost everything in all fields of human activities. Thanks to the industrious efforts of scientists, human's life has been daily improving. Today, science and technology are advancing in our country much more rapidly than at any time in the past. They are being applied to the needs of production and life. We, young technical workers, intend in all eagerness to make in-depth studies of national and international trends of science in various fields. To do this, it is necessary for us to get well known of the lates result of scientific researchers. We sincerely write to ask an appointment to visit your exhibition. We will very much appreciate it if you can arrange for our colleagues about 32 persons to come on Sept. 26, 2009, this Friday. Thank you in advance for a favorable reply at your earliest convenience. Regards, TPR Software CompanyHow many people are allowed to visit the exhibition center every week?

单项选择题 What the critics said in the first paragraph amounts to the idea that)（）.

单项选择题 Dear Sir, Thank you for your business. You are currently represented in our directory. This is the only directory of its kind which reaches all companies in the building and construction industry in the UK. Advertising in our directory was a wise move on your part. We are currently compiling a new edition of the directory which will be published in May 2010. The new edition will be expanded to include major manufacturers of plumbing equipment in the European Community. For proper coverage in the directory, you ought to appear in more than one category. If you do opt for a multiple listing, you will be able to buy space in additional categories at half price. You can be assured that the new edition will be on the desks of all the major decision makers in the building and hardware trades. Please complete the enclosed form. and return it with the appropriate fee. We assure you of our best services at all times. Enclosure; Forms to finish Yours Sincerely, Equipment MagazineWhy does the Equipment Magazine write the letter?A．To make an advertisement on the new editionB．To search for further cooperationC．To ask for the feeD．To make sure the fulfillment of the form