两人采用同一方法测定同一样品，欲判断两人的分析结果之间是否存在显著性差异，应采用（） 发布时间：2017-08-03 12:36 │ 来源：www.tikuol.com 题型：单项选择题 A1型题 问题： 两人采用同一方法测定同一样品，欲判断两人的分析结果之间是否存在显著性差异，应采用（）A.Q检验法B.F检验加t检验法C.F检验法D.t检验法
题型：单项选择题 A1型题 完形填空：从每小题的四个选项中选出最佳答案。 This is my house. There is a small garden behind the house. Sometimes I play games or 1 supper in thegarden. Look! My cat 2 there now. There 3 three bedrooms and a living room in our house. My bedroomis 4 the first floor. It's quite small. There's a desk and a chair in the room. 5 near the window. You can see 6 books on the desk. They are 7 favorite books. There's a bed 8 the desk. 9 is blue. There's apair of shoes 10 the bed. I like my house very much. ( )1. A. have ( )2. A. play ( )3. A. have ( )4. A. in ( )5. A. They're( )6. A. much ( )7. A. mine ( )8. A. next ( )9. A. Bed ( )10. A. on B. has B. plays B. has B. on B. They B. any B. I B. next to B. A bed B. under C. having C. playing C. are C. for C. It's C. some C. me C. is next C. The bed C. in D. is having D. is playing D. is D. from D. It D. no D. my D. is next to D. They D. front 查看答案
题型：单项选择题 A1型题 下列四组实验，根据实验事实得出的结论，正确的是A．在未知试液中滴加BaCl2溶液得白色沉淀，取该白色沉淀加稀盐酸不溶解，说明原未知试液中含有SO42- 。B．在五水硫酸铜中滴加少量浓硫酸，固体颜色由蓝变白，说明浓硫酸具有吸水性C．在铜片上滴加少量稀硫酸，无明显现象，说明稀硫酸没有氧化性D．某未知气体通入品红溶液中，品红溶液褪色，则原气体一定是 SO2 查看答案