盐酸克伦特罗，临床上用于治疗哮喘，若添加在饲料中，可使动物瘦肉率提高，故俗称“瘦肉精”。食用这种肉类会对人产生危害，其合成路线如下
提示：
请冋答以下问题：
(1) 反应③、④的反应类型分别是_______、_______。
(2) 书写②所代表的化学反应方程式：____________________________。
(3) 写出中间物Y的结构简式：_____________________。
(4) 写出与X互为同分异构体，而且分子中含有苯环、氨基和醛基，核磁共振氢谱有5組峰的所有分子结构简式____________________________
(5) 下列关丁盐酸克伦特罗的说法正确的是________
A. 一定条件下能发生消去反应
B. 能与AgNO3溶液反应产生白色沉淀
C. 一定条件下能发生加成反应
D. 一定条件下既能与强酸反应，又能与强碱反应
(1)取代反应；加成反应（还原反应）
(2)
(3)
(4)
、
(5)ACD
I met Mrs. Neidl in the ninth grade on a stage-design team for a play and she was one of the directors. Almost instantly I loved her. She had an Unpleasant voice and a direct way of speaking, 36 she was encouraging and inspiring. For some reason, she was impressed with my work and me. Mrs. Neidl would ask me for my 37 . She wanted to know how I thought we should 38 things. At first I had no idea how to answer because I knew 39 about stage design! But I slowly began to respond to her 40 . It was cause and effect: She believed I had opinions, so I began to 41 them. She trusted me to complete things, so I completed them perfectly. She loved how 42 I was, so I began to show up to paint more and more. She believed in me, so I began to believe in myself. Mrs. Neidl’s 43 that year was, "Try it. We can always paint over it 44 !" I began to take 45 . I had been so afraid of failing but suddenly there was no failing --- only things to be 46 upon. I learned to dip my brush into the paint and 47 create something. The shy, quiet freshman achieved success that year. I was 48 in the program as "Student Art Assistant" because of the time and effort I’d put in. It was that year that I 49 I wanted to spend the rest of my life doing stage design. Being on that stage-design team 50 Mrs. Neidl changed me completely. Not only was I stronger and more competent than I had thought, but I also 51 a strong interest and a world I hadn’t known existed. She taught me not to 52 what people think I should do: She taught me to take chances and not be 53 . Mrs. Neidl was my comforter when I was upset. Her 54 in me has inspired me to do things that I never imagined 55 .
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