将下列化合物按 1 H化学位移值从大到小排序,并说明原因。 a.CH 3 F b.CH 3 OCH 2 c.CH 2 OH d.CH 2 F 2 e.正丙醇
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【简答题】1)8. What did the man do yesterday? A)He had a driving lesson. B)He got his driver’s license. C)He took the driver’s theory exam. D)He passed the driver’s road test. 2) 9. Why did he fail the exam the...