钻井液的基本性能参数包括密度、粘度、切力、（）、PH值等五项。A、滤失量 B、泥饼厚 发布时间：2017-07-04 13:24 │ 来源：www.tikuol.com 题型：单项选择题 问题： 钻井液的基本性能参数包括密度、粘度、切力、（）、PH值等五项。A、滤失量B、泥饼厚度C、渗滤速度D、含盐量
题型：单项选择题 男，6岁。上下唇反复干裂、脱皮2年，秋冬季加重。患儿有舔唇不良习惯。检查见上下唇轻度肿胀，唇红黏膜干燥，表面可见大量的灰白色鳞屑及痂皮。该患者可能的诊断是（）A.肉芽肿性唇炎B.腺性唇炎C.日光性唇炎D.慢性唇炎E.自伤性唇炎 查看答案
题型：单项选择题 从方框中选择适当的句子补全对话.A: Hey, Gina. Do you want some ice cream?B: No, thanks. 1 A: Really? Where are you going?B: I'm going to play baseball. Do you want to come ?A: Sorry, I can't. 2 B: Well, come later then. We're playing all aftenoon. A: 3 But I'm not very good at baseball.B: Don't worry about that. 4 _You can just watch. Come on, it'll be f'un.A: Well, OK. 5 B: OK. See you! A. It sounds nice. B. See you later. C. I need to study. D. I'm going out. E. I don't think so.F. You don't have to play. G. You can do that again.1. 2. 3. 4. 5. 查看答案