题目

乙烯酮是一种极易与试剂发生加成的剧毒性气体，其结构简式为CH2=C=O，则有关它的说法不正确的是(    )A.在一定条件下，可用醋酸脱水得到乙烯酮B.乙烯酮能与醋酸反应生成CH3—CO—O—CO—CH3C.能与溴水反应，但不能使酸性KMnO4溶液褪色D.能与蚁酸反应生成O=C(CH3)—O—CH3 答案：CD(Doctor="D," Woman=W)D: Good morning. What's your trouble?W: I don't feel very well.D:____ 【小题1】___W:Yes, I have. My temperature is a little higher.D:Open your mouth and say, "Ah".W:Aahh.D:____ 【小题2】___W:Ever since last night.D: Did you sleep well?W:No. I was very tired last night.D: Oh, I see.___ 【小题3】_____W:Can you tell me how I got a cold?D: Maybe you are too tired.W:Ｉthink so. I have too much work to do every day. Do I have to stay at home?D:Yes. You'd better stay at home for two or three days.W: ____【小题4】___D: No, I don't think so. But you really need a good rest and take the medicine.W:___ 【小题5】__D:Three times a day.W:OK. Thank you.A. You've got a cold.B. How often do I have to take it?C. Have you taken your temperature?D. How long have you been like this?E.Is it serious?