题目

下图是一些常见有机物的转化关系，下列说法正确的是( ) A．反应①是加成反应，反应⑧是消去反应，其他所标明的反应都是取代反应 B．上述物质中能与NaOH溶液反应的只有乙酸 C．1,2­二溴乙烷、乙烯、乙醇烃基上的氢被氯取代，其一氯取代产物都是一种 D．等物质的量的乙烯和乙醇与足量氧气反应时耗氧量相同短文改错假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。删除： 把多余的词用斜线(\)划掉。修改：在错的词下划一横线，并在该词下面写出修改后的词。注意：1. 每处错误及其修改均仅限一词；2. 只允许修改10处，多者(从第11处起)不计分。One activity that my family and I enjoy do every summer is taking our boat out. It’s so many fun! We always invite one of our neighbour, Paul, to go with us. Paul is also my best friend, whom is the same age as me. He is good for swimming and fishing. I still remember last year he catches a very big fish. Every time we go boating, my father drives the boat. Sometimes he drives them really fast when we are sitting in front of the boat. We are very excited and happily. My mother always brings a lot of fruits and snacks. When we are hungry or thirsty, and we can eat them.