题目

已知a=3b（b≠0），则代数式的值等于（ ）. A．2          B．﹣2         C．          D． 答案：A 1. the improvement of life standards，there are a growing number of people travelling each year, 2. is a good way to enjoy life. Some people would like 3. (take) a package tour, while others would rather 4. (travel) on their own. I prefer to 5. latter, because I feel that it’s much 6. (convenient) and cheaper than taking a package tour as I did before.First of all, travelling on my own, I can arrange my time and route more freely. For example, when I get to someplace I like, I 7. choose to stay longer and don’t have to think about others. Secondly, to save time, the schedule is relatively（相对地）tight joining package tours, and tourists can only stay very short time in each tourist attraction. 8. is difficult to enjoy every landscape carefully. 9., in order to earn money, some travel agencies（旅行社）force tourists to consume. In the meantime, travelling on my own is much cheaper and get more fun. Finally, the trip is designed to relax. However, many people say that package tours are not to make them really relax, 10. even more tired.On the whole, I prefer to travel on my own, which is more convenient.