题目

下图是四种仪器的测量情形。 (1)图1中体温计的读数为___℃； (2)图2中电压表的示数为_   __V； (3)图3量筒中液体的体积为_        ___mL； (4)图4中弹簧测力计的示数为_           _N。 答案：  (1)图1中体温计的读数为___℃； (2)图2中电压表的示数为_7.5__V； (3)图3量筒中液体的体积为_40___mL； (4)图4中弹簧测力计的示数为_2.6_N。解析:略33、In the mid 1990’s, people started doing business on the internet. At that time, there were two kinds of companies. First, there were traditional companies. They sold things in stores. Then, there were internet companies. They didn’t have a store, and they only sold things on the net. Traditional companies didn’t want to lose any business. Quickly, they made their own websites and began selling things on the net. These are the so-called “brick and click” companies. Many stores are made of brick, and you click on your mouse to buy things with your computer. That’s where the name “brick and click” comes from. By the late 1990’s, e-businesses like Amazon.com, Buy.com, and eToys.com were in trouble. Their profits were not very high. Competition was fierce(激烈的) and many of these businesses were losing a lot of money. In 2000, many e-businesses went out of business. Why are brick and click companies, like Barnes and Noble, Toys R Us, and Walmart so successful? Frist, many customers know and trust their names. Their websites, like walmart.com, are easy to remember. These companies also have a lot of experience. They know how to run a successful business. In the world of e-commerce(电子商业), companies are fighting for every dollar and every customer. Will brick and click companies win the war? Only time will tell. 1. What did many traditional companies do in the mid 1990’s? A. They went out of business.                 B. They made websites. C. They bought internet companies.            D. They sold their computers. 2. Which would be a brick and click company? A. A clothing company with no website. B. A bookseller with five stores and an internet site. C. A video seller with a big website but no stores. D. A restaurant. 3. What gave internet companies a lot of trouble in the late 1990’s? A. There was a lot of competition.             B. Their websites were bad. C. They didn’t know what to sell.              D. Their profits were high. 4. People like buying from brick and click companies because____________. A. their names are hard to remember           B. they have nice websites C. they are cheap                          D. people trust them 5. What does “win the war” mean? A. Quit doing business and become a soldier.   B. Lose the most customers. C. Be the most successful.                  D. Win a game.