今年5月份以来，据怀化市气象局工作人员统计，有近20多天的阴雨天气，给我们的生活和学习带来不便，在自然界中，雨形成主要是空气中的水蒸汽遇冷变成小水珠，则雨形成的物态变化过程是_刷题宝

题干

今年5月份以来，据怀化市气象局工作人员统计，有近20多天的阴雨天气，给我们的生活和学习带来不便，在自然界中，雨形成主要是空气中的水蒸汽遇冷变成小水珠，则雨形成的物态变化过程是（）

A：汽化

B：液化

C：熔化

D：升华

上一题下一题 0.0难度选择题更新时间:2019-11-19 11:35:19

答案(点此获取答案解析）

B

同类题1

右图为两种不同类型的生物细胞模式图，请分析回答：

同类题2

若单项式﹣2a^mb³与

\frac{4}{5} a^{5} b^{2 - n}

是同类项，则m+n=____．

同类题3

People a lot of meetings because of the dangerous illness.

同类题4

将下列单词或词组填入空格。每空限填一词，每词只能填一次

A. weak B. break C. confident D. at the end of
E. possibly F. breath ' G. do well in H. hobbies I. politely

A headmaster is giving a speech about how to perform successfully in an interview to a
new school.

   Interviews are held so that you can learn about the school and the school can learn about you. You should spend a couple of hours getting ready for the interview carefully. Then you will ____  understand your questions better and get right answers on the day of the interview.
First find out about the school. Read the school introductions and look at the school websites. Then think about yourself- your strong points and ____  ones. Try to find a few examples you could give the interviewers.
   What else you want to tall the interviewer about yourself?. For example, you might want to speak about your interests and____  outside school. These tell the interviewer what kind of person you are. Be ready to talk about why you enjoy them.
   Dress properly on the day. Arrive a few minutes early. When you first meet the interviewer, greet him or her ____ Don't forget to smile and make eye contact. First impressions (印象) are very important. You want the interviewer to think you are ____ and friendly.
   If you get nervous, take a deep ____ to calm yourself down. Listen to the interviewer with great care. If you don't understand the question, ask the interviewer to repeat it. Last but not least, ____  the interview, don't forget to thank the interviewer and say goodbye.
   I'm sure that you will ____ your interviews. Best of luck, boys and girls!

同类题5

有一包固体粉末，可能由CaCO₃、Na₂SO₄、KNO₃、CuSO₄、BaCl₂中的一种或几种组成，做实验得以下结果：

（1 ）将此固体粉末加到水中，得到白色沉淀，且上层清液为无色；

（2 ）该白色沉淀部分溶于稀硝酸，并有无色气体产生．据此实验，得出的下列判断中正确的是（）

小学学科试题库

初中学科试题库

高中学科试题库