题目

有机物A的结构简式为：从A出发，可以发生所示的一系列反应，其中K的分子式为C12H14O4，L和K互为同分异构体，F的产量可作为衡量一个国家石油发展水平的标志。请写出：(1)F→H的反应类型是________________。(2)下列物质的结构简式：B：___________；K：___________；L：___________。(3)写出与B互为同分异构体，且苯环上只有一个取代基的各有机物的结构简式。It was the first day of biology class. The teacher wanted to give a good 1to his class. He wanted to 2his students’ eyes to the world of biology.He knew that 3young students was not easy, so he worked 4and tried to find a good way to teach this class.5thinking for a long time, he made a 6at last. He decided to show the kids something 7and teach them a lesson at the same time.He asked his students to 8carefully. Then he began. He put a worm(虫子) into a glass of water. The worm9around in the water. Then he put a second worm into a glass full of alcohol(酒精). It died at once. He asked the students if anyone knew about10they learned from it. A boy said, “You showed us that if we drink alcohol we won’t have worms.”1.A.payB.startC.dayD.tour2.A.go toB.open upC.call upD.keep out3.A.sendingB.fittingC.followingD.teaching4.A.hardB.quicklyC.loudlyD.alone5.A.BeforeB.WhileC.AfterD.When6.A.storyB.decisionC.cakeD.face7.A.crazyB.impossibleC.strangeD.interesting8.A.watchB.useC.listenD.write9.A.fliedB.ranC.jumpedD.swam10.A.whatB.howC.whenD.why