一氯代物的同分异构体有2种，二氯代物的同分异构体有4种的烷烃是（） A．乙烷 B 发布时间：2017-05-24 20:54 │ 来源：www.tikuol.com 题型：选择题 问题： 一氯代物的同分异构体有2种，二氯代物的同分异构体有4种的烷烃是（ ）A．乙烷B．丙烷C．正丁烷D．新戊烷
题型：选择题 阅读下面的短文，完成相关任务。 Dear Sam, The weather is wonderful in Hainan, thought (尽管) it is winter now. The air is fresh, the sky is clear and ①_______. The days are warm and ②______, but the nights are cool and humid. It's a beautiful place in China. I stay at a hotel on the coast (海岸). There is a beautiful ③_______ pool. There is a beach, too. I like Chinese food. It is delicious. ⑤My room and meals cost ￥200 a day. Every day after a ④_______ breakfast, I spend the morning on the beach. Then I go sightseeing, such as Yalongwan, Luhutou, Tianyahaijiao and so on. After that, I usually sleep for a few hours. Then I read by the pool and have a cool drink. I will come here again next winter. Do you want to come with me? Love, Jim 任务一、从方框中选择所给词并用适当形式完成短文中的空白处。sun big blue swim1. ①_______ 2. ②_______ 3. ③_______ 4. ④_______ 任务二、将⑤处画线句子译成汉语。 5. ___________________________________________________________________ 查看答案