抽水期间,应按要求观测水温,一般每()小时应观测一次。 发布时间:2019-07-22 13:57 │ 来源:www.tikuol.com 题型:填空题 问题: 抽水期间,应按要求观测水温,一般每()小时应观测一次。
题型:填空题 Choose. 从B栏中选出A栏各句的答语。 A ( ) 1. Why are you crying? ( ) 2. What is he doing? ( ) 3. Where do you live? ( ) 4. Where is Danny? ( ) 5. Can birds fly? ( ) 6. Are you going to the clothes shops? ( ) 7. where does your father work? ( ) 8. May I help you? ( ) 9. Thank you! ( )10. Do you have a cat? B A. Yes, I want to buy a sweater. B. You're welcome. C. Because my kite is broken. D. Yes, I do. E. He is singing. F. Yes, they can. G. I live in a building. H. He works in an office. I. He is outside the school. J. No, I am not. 查看答案
题型:填空题 下图的四支试管甲、乙、丙、丁各装入2毫升淀粉糊,再将四支试管分别加入不同的物质,振荡使其反应充分,据图回答。(1)鉴定淀粉所特用的试剂是___________。(2)淀粉糊不变蓝的是___________试管,这是因为______________________。(3)甲试管的变色情况是___________,这是因为______________________。(4)甲、丙、丁三支试管的作用是______________________。 查看答案