大量出汗或急性腹泻后尿量减少的主要原因是（） A.血浆胶体渗透压降低 B.肾小球毛细 发布时间：2020-02-11 07:36 │ 来源：www.tikuol.com 题型：单项选择题 A1/A2型题 问题： 大量出汗或急性腹泻后尿量减少的主要原因是（）A.血浆胶体渗透压降低B.肾小球毛细血管血压升高C.囊内压升高D.血浆晶体渗透压升高，抗利尿激素释放增加E.肾小管内溶质浓度增加
题型：单项选择题 A1/A2型题 关于典型心绞痛以下错误的是()A.发作时某些导联sT段降低B.心电图不正常，发作时有假性改盖”C.运动试验可以有阳性改变D.T波多低平、双向或对称性倒置E.发作时间短暂 查看答案
题型：单项选择题 A1/A2型题 阅读理解。 Some students are talking about open-book exam: May: We students have so many burdens (负担). Maybe examination is the greatest one.Open-book exams can make our burdens lighter, I think. At least it means that we need not learn so many things by heart any more. Hill: Open-book exams do not mean students do not need textbooks any more. Instead,it shows how much students really understand about the book. It may mean we need spend even more time learning history and politics because the open-book exam means going deeply into the textbooks. Sun: We need a long time learning for history and politics exams because there are so many things to remember. And sometimes the results are not very good, even if wehave spent a long time studying. If we are able to take books into our exams, we will save time and we won't have so many headaches. Tang (teacher): Open-book tests are harder for students because the tests make them feel they donot need to understand the textbooks any longer. They rely on (依靠) the books and spend most of their time looking for answers during exams. Sometimes they might not even be able to finish their tests because they have wasted too much timelooking for answers. 1. Who think open-book exam is easier for students? [ ]A. May and Sun B. May and Tang C. Sun and Hill D. Tang and Hill 2. According to the passage today students ________. [ ]A. like to learn history and politics by heart. B. have so many burdens. C. are healthy enough to remember all the things. D. are not very clever, so they need open-book exams 3. What does Tang think makes some students not be able to finish their tests in time? [ ]A. They can't do it at all. B. The time for tests is too short. C. They waste time learning the answers by heart. D. They don't understand the textbooks very well. 4. Hill thinks that open-book exam means "________". [ ]A. students do not need to read textbooks any more B. students will save time and they won't have so many headaches C. how much students really understand about book D. students need not learn so many things by heart any more 5. According to the text, which do you think is NOT true? [ ]A. You can take your textbook with you in an open-book exam B. You need to learn more things in the history and politics books by heart in an open-book exam C. The open-book exam may mean going deeply into the textbook. D. It has two sides to have an open-book exam — good and bad. 查看答案
题型：单项选择题 A1/A2型题 甲乙区段牵引重量为4000t，如某货物列车编成重量为（），并运行完甲乙全区段，则该货物列车是满轴列车。A.4081tB.3920tC.3900tD.3919t 查看答案
题型：单项选择题 A1/A2型题 在开标的过程中，某投标文件计算过程中单价与工程量的乘积与总价不一致，此时正确的处理方式为（）A.以单价金额为准B.以总价金额为准C.由投标人确认D.由招标人确认 查看答案