降低肺泡表面张力的重要物质是()A.肺泡表面活性物质 B.肾上腺素 C.肾素 D.乙 发布时间:2017-10-04 02:08 │ 来源:www.tikuol.com 题型:单项选择题 问题: 降低肺泡表面张力的重要物质是()A.肺泡表面活性物质B.肾上腺素C.肾素D.乙酰胆碱E.碳酸酐酶
题型:单项选择题 选词填空。pay cost take spend1. Travelling around Paris by taxi can _____ a lot of money. 2. You will _____ a lot of money if you travel around Paris by taxi. 3. I _____ fifty dollars for the dress. 4. The dress _____ me fifty dollars. 5. It _____ me fifty dollars to buy the dress. 6. I _____ fifty dollars on the dress. 7. I _____ an hour in cleaning my house every day.8. It _____ me an hour to clean my house every day.9. It _____ me fifty dollars. 查看答案
题型:单项选择题 患者,男性,63岁。因突然脑卒中入院,遵医嘱给患者面罩法吸氧,护士应调节氧流量为A.2~4L/minB.4~6L/minC.6~8L/minD.6~10L/minE.8~10L/min 查看答案
题型:单项选择题 下列关于能源消耗的叙述,正确的是( ) A.发达国家的能源消耗普遍较高,发展中国家的能源消耗普遍较低B.中国的能源消耗总量和人均耗能量都很低C.目前全球能源的年消耗量仍在增长,但全世界使用的能源大部分来自可再生能源D.从能源消耗带来的环境污染看,发展中国家应负有更大的责任 查看答案