疣状白斑多见于（） A.唇红粘膜 B.口角区颊粘膜 C.舌腹口底粘膜 D.牙龈粘膜 发布时间：2017-09-10 00:17 │ 来源：www.tikuol.com 题型：单项选择题 问题： 疣状白斑多见于（）A.唇红粘膜B.口角区颊粘膜C.舌腹口底粘膜D.牙龈粘膜E.硬腭粘膜
题型：单项选择题 关于电场强度E的说法正确的是[ ]A．Q为负电荷时，E的方向与其所受到的电场力方向相同 B．根据E＝F／Q可知，电场中某点的电场强度与电场力F成正比，与电量Q成反比C．电场中某点的场强方向跟正电荷在该点所受到的电场力的方向相同 D．一个正电荷激发的电场就是匀强电场 查看答案
题型：单项选择题 补全对话，根据对话内容选出可填入空白处的最佳选项。A. How much is it?B. I′d like to buy a washing machine. C. Washing machines always makes noises. D. What about this one, Madam? E. Can I help you? F. Yes, it′s made in Shanghai. G. Here are some shirts and trousers.A: Good afternoon. What can I do for you? B: 1. _______A: We have got many washing machines here. 2. ________B: Is it made in China? A: 3. _______ It′s the newest one. B: Would you show me how to use it? A: Sure.4. ________. Put them in, and then do it like this. B: Mmm, not bad. 5. ________ A: 1,200 yuan. 1._____ 2._____ 3._____ 4._____ 5._____ 查看答案