基坑开挖前期先进行（）的施工。A、地基加固 B、钻孔桩 C、井点降水 D、圈梁 E、地墙 发布时间：2019-02-04 16:48 │ 来源：www.tikuol.com 题型：多项选择题 问题： 基坑开挖前期先进行（）的施工。A、地基加固B、钻孔桩C、井点降水D、圈梁E、地墙
题型：多项选择题 阅读下面一篇材料，从所给的A-G七个选项中，选出正确的选项填空，使短文通顺、内容完整。 It's very common for students' marks to fall. 1. Sometimes it is only because the exams get harder. 2. He or she will be able to help you with the subjects you find difficult. Stop comparing yourself with other people. It does not matter if other students get higher marks than you. 3. Beforeeach exam, you should go through you notes from class. You should remember the most important thingsyou have written in a shorten form. 4. You will be surprised when you find you remember so much. It may take hard work and your marks may not improve straight. 5. Soon they should begin to climb again. A. it is just because you never work hard. B. Look through your shorter notes again just before the exam. C. But let your confidence rise by every mark. D. When your marks start to fall, you should try talking to a friendly teacher. E. But my parents won't be angry with me.F. Sometimes it is because of situation outside school, such as problems at home. G. What is important is that you do your best. 查看答案
题型：多项选择题 男性，67岁，拟在体外循环下行冠状动脉旁路移植术。有关心脏麻醉监测指标描述正确的是（）。A.中心静脉压（CVP）作为血容量状态的粗略指标，可用于估计左室舒张末期容量B.三联指数（心率×收缩压×PCWP）应在150000以下C.正常心肌供氧与耗氧之比应大于0.7D.心率维持一般不高于100次／分E.转流期间平均动脉压要求维持在80～100mmHg 查看答案