题目

Does this situation seem familiar to you? Your English is progressing well, the grammar is now familiar, the reading comprehension is no problem, you are communicating quite fluently, but: Listening is STILL a problem! First of all, remember that you are not alone. Listening comprehension is probably the most difficult job for almost all learners of English as a foreign language. The most important thing is to listen as often as possible. The first step is to find listening resources. The Internet is really a useful tool for English students. You can download The RealPlayer from RealMedia.com.12．有如下合成路线，甲经二步转化为丙：下列叙述错误的是（　　）A．步骤（2）产物中可能含有未反应的甲，可用溴水检验是否含甲B．反应（1）的无机试剂是液溴，铁作催化剂C．甲和丙均可与酸性KMnO4溶液发生反应D．乙属于烃的衍生物，其所含官能团可能为溴原子