纠正高血糖症并发代谢性酸中毒时，pH低于多少需要使用碱性药（） A.7.10 B.7 发布时间：2017-08-06 08:20 │ 来源：www.tikuol.com 题型：单项选择题 问题： 纠正高血糖症并发代谢性酸中毒时，pH低于多少需要使用碱性药（）A.7.10B.7.15C.7.20D.7.25E.7.30
题型：单项选择题 完形填空。 Once a Frenchman 1 in England. He didn't know English very well. One day he went to the post office with a postcard. He bought a 2 . Then he gave the stamp and the postcard to the girl 3 the desk. "Oh, no," the girl said, "you must stick (贴) the stamp on yourself." He was very 4 . He couldn't believe his ears. "Why must I stick the stamp on 5 ?" he asked. "Oh," said the girl, "I mean that you must stick the stamp on the postcard. And you must do it yourself." ( ) 1. A. live ( ) 2. A. postcard ( ) 3. A. in ( ) 4. A. surprised ( ) 5. A. yourself B. lives B. stamp B. on B. well B. myself C. living C. envelope C. at C. tired C. herself D. lived D. paper D. under D. happy D. himself 查看答案
题型：单项选择题 数据库系统一般由( )构成。 Ⅰ．数据库 Ⅱ．数据库管理员 Ⅲ．数据库管理系统及其工具 Ⅳ．用户 Ⅴ．操作系统 Ⅵ．应用系统A．Ⅰ、Ⅱ和ⅢB．Ⅰ、Ⅱ、Ⅲ和ⅣC．Ⅰ、Ⅱ、Ⅲ、Ⅳ和ⅤD．全部 查看答案