镇痛作用是吗啡的80～100倍，为一速效、短效、强效的镇痛药是（）. A．哌替啶 B 发布时间：2017-04-06 10:32 │ 来源：www.tikuol.com 题型：单项选择题 问题： 镇痛作用是吗啡的80～100倍，为一速效、短效、强效的镇痛药是（）.A．哌替啶B．美沙酮C．芬太尼D．可待因E．喷他佐辛
题型：单项选择题 补全对话。 A: What can l do for you, sir? B: 1 A: Could you tell me when you would like to fly? B: On the l0th of next month. A: The l0th? Just a minute, please. I have to check the computer. Hmm, I'm sorry. 2 What about the 9th?B: The 9th? No, I can't leave before the l0th. What about the l l th?A: Let me see. 3 B: What's the night number?A: Flight number? It's HU703. B: HU703. 4 A: Yes, that's half past four in the afternoon. One-way or round-trip? B: One-way. A: How many seats, please? B: 5 A: OK. I'll get them for you at once. A: Certainly. You can help me. B: Yes, we have a flight on the l l th.C. Yes, please. I'd like to book two tickets to Hong Kong. D: You have to wait for about an hour. E. It leaves Haikou at l6:30, doesn't it?F: We don't have any flights to Hong Kong that day.G. I'd like two seats, please. 1._____ 2._____ 3._____ 4._____ 5._____ 查看答案
题型：单项选择题 将下面打乱顺序的几句话进行正确的排序是 （只填序号）。（2分）①旧社会男女有别，双主不能见面，只能借助屏风了。②过去的院子或天井中，为避免从门外直接望见厅室，必置一屏，上面有书有画，既起分隔作用，又是艺术点缀，而且可以挡风。③小时候厅上来了客人，就躲在屏后望一下。④而空间上还是流通的，如今称为“流动空间”。⑤屏可以分隔室内室外。 查看答案
题型：单项选择题 判断一种生产关系是否先进的根本标志在于它是（）。A．生产资料公有制还是生产资料私有制B．社会化大生产还是个体小生产C．促进生产力发展还是阻碍生产力发展D．封闭的自然经济还是开放的市场经济 查看答案