题目

中国人民银行于国家重大节庆日都会发行一些纪念钞，这些纪念钞与同面额人民币等值流通。这说明纪念钞在本质上是 A．商品         B．一般等价物         C．价值符号        D．收藏品 答案：C 解析: 略29、amazon.com Dear Customers, I love  slipping into a comfortable chair for a long read－as I relax into the chair, I also relax into the author’s words, stories, and ideas. The physical book is so elegant that it disappears into the background, and what remains is the author’s world. Today, we at Amazon are excited to announce Mindle, a wireless, portable reading device with instant access to more than 90,000 books, magazines, and newspapers. We’ve been working on Mindle for more than three years. Our top design objective was for Mindle to disappear in your hands－to get out of the way－so you can enjoy your reading. We also wanted to go beyond the physical book. Mindle is wireless, so whether you’re lying in bed or riding a train, you can think of a book, and have it in less than 60 seconds. No computer is needed－you do your reading directly from the device. We chose the same wireless technology used in advanced mobile phones. But unlike mobile phones, there are no monthly wireless bills, no service or data plans, and no yearly contracts. There is no software to install. We want you to get lost in your reading and not in the technology. Mindle uses a new kind of display called electronic paper. Sharp and natural with no strong light, reading on Mindle is nothing like reading from a computer screen. Mindle weighs only 10.3 ounces－less than a paperback－but can carry two hundred books. Enjoy learning about Mindle and many thanks! Leff Bezos Founder & CEO 1．This passage most probably is a(n) _______.        A．advertisement                                      B．news story        C．lab report                                            D．letter of thanks 2．From the passage we learn that Mindle is a device which _______.        A．has neither wires nor weight                B．is operated by a computer        C．disappears while you read                    D．can find a book within one minute 3．With the device, the reader is able to ___________.        A．enjoy reading when driving a car           B．improve reading skills        C．gain access to free software                 D．get rid of heavy books made of paper 4．Different from mobile phones, Mindle ________.        A．has a much more friendly screen           B．can work in the absence of electricity        C．doesn’t involve regular fees    D．is wireless and can be used anywhere