皮皮学，免费搜题
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搜题
【多选题】
Direction: Listen to the dialogues and fill in the blanks to complete them. Dialogue1 Fill in the blanks, using the following sentences marked A, B, C and D.A.
it causes lung cancer.
B.
you need to quit.
C.
quitting is really hard.
D.
It also helps heal the damage to your lungs and bronchial tubes
E.
people around you are at risk of developing asthma. Nurse (M): Hi, Mrs. Blake. I have a few questions before the doctor sees you. Are you still smoking? Patient (W): Yes, but not very much. Nurse: Still, 1 .You understand the risks, don ’t you? Patient: Of course. I know __2____________ . Nurse: Yes. Plus,____3________________ . Patient: I know. And I don ’t want my kids getting it. But _____4____________ . Nurse: 5 . Patient: Well, I ’ll think about it
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】以下哪个合成策略能实现4-溴苯甲酸的合成
A.
甲苯先发生亲电溴代反应，再把甲基氧化成羧基
B.
乙酰苯胺发生亲电溴代反应，然后水解得到4-溴苯胺后经过氮盐、氰化、水解转化成羧基
C.
苯甲酸在FeBr3的催化下与Br2发生亲电取代反应
D.
溴苯硝化后，还原硝基成氨基，经重氮盐，氰化，水解成羧基
E.
硝基苯发生亲电溴代反应，再把硝基通过还原、成重氮盐、氰化、水解转化成羧基