题目

下列物质中,与葡萄糖具有不同最简式的是(  ) A.甲醛  B.蔗糖   C.甲酸甲酯(HCOOCH3)   D.果糖 答案：BHello, everyone. Because of the high rate of school violence(暴力) in some areas, teenagers’ safety becomes a serious problem. We are planning to set up an organization named School Watch to make sure that students have a safe school environment. Please be part of our plan!What is School Watch?School Watch is a volunteer project in our school. It helps us stop violence and improve the quality of school life. It will keep yourself and your schoolmates safe. The other members of School Watch care for you and your classroom, and you do the same for them.Is it for everyone?Anybody can become a member of School Watch because everyone has something to offer.What else can it do?School Watch makes it possible for us not only to help each other but also to make friends with each other. Some members may offer to help the schoolmates who have problems with their homework.Who is the School Watch?Our school will look for the School Watcher and give him or her lots of prizes. You could be the one!How do you start?To be part of this plan, the only thing you need to do is to talk to the director of the plan in your grade. You can check the official website at www.schoolwatch.com if you want to get more information.1.. School Watch can help its members_______.A. save the environmentB. go to school on timeC. improve the quality of school lifeD. organize the sports activities2.. The members of School Watch are probably______.A. teenagersB. doctorsC. parentsD. policemen3.. Anyone can become a member of School Watch because ______.A. everyone may have problems B. everyone can give help to othersC. everyone doesn’t go to schoolD. everyone isn’t busy