当某旅游产品的价格从100元上涨到150元时，该产品的市场供给数量也从2000个单位 发布时间：2017-05-29 16:31 │ 来源：www.tikuol.com 题型：单项选择题 问题： 当某旅游产品的价格从100元上涨到150元时，该产品的市场供给数量也从2000个单位上升到2500个单位。这说明该旅游产品的供给（）。A.富有弹性B.缺乏弹性C.无弹性D.弹性一致
题型：单项选择题 — ____________ is the school from the post office?— It's about three kilometers away. [ ]A. How many B. How far C. How much 查看答案
题型：单项选择题 阅读理解。 Most people think of racing when they see greyhounds(灰狗)and believe they need lots of exercise. They can actually be quitelazy! Greyhounds are good at fast races but not long-distance run-ning. They do need regular exercise but they like to run for a shortburst and then get back on the bed or a comfortable seat. Anothermisunderstanding is that greyhounds must be aggressive (好斗的)because they are big in size. In fact greyhounds love people and aregentle with children. Greyhounds can live for 12～14 years but usually only race fortwo or three years, and after that they make great pets. They don'tneed a lot of space,don't make a lot of noise,and don't eat a lot fortheir size. Normally, greyhounds can be as tall as 90cm. There is, however,a small-sized greyhound, which stands only 33cm. Greyhoundscome in a variety of colors. Grey and yellowish-brown are the mostcommon. Others include black, white, blue, red and brown or a mixof these. Greyhounds have smooth body coats ,low body fat and are veryhealthy. Because they're slim (苗条的)they don't have the legproblems like other dogs with the same height. But they do feel thecold ,especially since they would much rather be at home in bedthan walking around outside. 1. The text is written mainly ________. A. to tell people how to raise greyhoundsB. to let people know more about greyhoundsC. to explain why greyhounds are aggressiveD. to describe greyhounds of different colors2. It can be inferred that greyhounds _______. A. love big dog housesB. like staying in bed all dayC. make the best guard dogsD. need some exercise outdoors3. Why does the author say that greyhounds.make great pets7 A. They are big in size.B. They live a very long life.C. They can run races for some time.D. They are quiet and easy to look after.4. If you keep a pet greyhound,it is important _______. A. to keep it slimB. to keep it warmC. to take special care of its legsD. to take it to animal doctors regularly 查看答案