关于风湿性心脏病孕妇的分娩期处理,正确的是() A.应行剖宫产 B.应缩短第二产程 发布时间:2017-05-09 00:14 │ 来源:www.tikuol.com 题型:单项选择题 A1型题 问题: 关于风湿性心脏病孕妇的分娩期处理,正确的是()A.应行剖宫产B.应缩短第二产程C.忌用吗啡D.无感染者不需使用抗生素E.应预防产后出血,应肌注麦角新碱
题型:单项选择题 A1型题 交际运用。 A. What about you?B. I think a good friend has good grades at school. .C. Lots ofD. Do you think a good friend should be popular in school?E, He or she often makes us happy.A: James, what do you think a good friend is like?B: (1)_______A: You mean he or she should be good at schoolwork?B: Yes. And he or she is funny and outgoing. (2) ________ A: anything else?B: Er... I think a good friend likes to do the same thing as me. (3) ________A: I like to have friends who are different from me.A:(4) ________A: Well, that is not important for me.B: How many friends do you have?A: (5) ________. I like to make friends with different kinds of people.1. ________2. ________3. ________4. ________5. ________ 查看答案
题型:单项选择题 A1型题 人们认为自从出现了有性生殖后,生物进化速度加快了,这是因为()。①有性生殖产生的后代具有更大的生活力和变异性②有性生殖比无性生殖繁殖速度更快③有性生殖可以让两个不同物种的个体杂交,产生新物种④最适者能找到更多的有性生殖的机会,因而使有利变异得到积累和加强A.①②B.①③C.③④D.①④ 查看答案
题型:单项选择题 A1型题 湿邪致病缠绵难愈的主要原因是A.湿邪损伤阳气,病难速愈B.湿为阴邪,易阻遏气机,病难速愈C.湿性黏滞,不易祛除,病难速愈D.湿性重浊,留滞于体内,病难速愈E.湿性趋下,易袭阴位,病难速愈 查看答案
题型:单项选择题 A1型题 在纯比例控制系统中,若调节器的PB调得太小,控制系统的品质指标中将不会发生的变化是()。A.静态偏差ε↓B.最大动态偏差emax↓C.过渡过程时间ts↓D.振荡次数N↑ 查看答案