【单选题】Woman: Have you ever visited Linda's room? Man: No. Is there anything? Woman: Well. . . you can't imagine it. It looks just like a total wreck. Question: What is Linda's room like?
【简答题】双环戊二烯 是一种化学活性很高的烃,存在于煤焦油中. (1)写出双环戊二烯的分子式______; (2)双环戊二烯的各种同分异构体当中,可能含有的官能团有______; a.碳碳双键;b.碳碳叁键;c.苯环 (3)室温下发生下列反应: ,反应类型为______; (4)篮烷 是双环戊二烯的同分异构体,假设篮烷分子结构示意图中夹角只有135°、90°两种,它的一氯代物有______ 种.
【简答题】You know you have to read “between the lines” to get the most out of anything. I want to persuade you to do something equally important in the course of your reading. You have to “mark between the lin...
【简答题】运输信息管理的特性包括( ) A、及时性 B、稳定性 C.动态性 D.复杂性
【单选题】听力原文:W: I'm going to the stationary store for some pencils. Want anything? M: See if you can pick up a stapler for me. Q: What does the man mean? (16)
A.
He wants her to pick up some stamps.
B.
He wants her to buy some tables.
C.
He wants her to buy a stapler.
D.
He wants her to buy some pencils.