反映粉碎国民党军队重点进攻的影片是[ ] A.《保卫延安》 B.《挺进大别山》 发布时间:2017-05-27 14:19 │ 来源:www.tikuol.com 题型:选择题 问题: 反映粉碎国民党军队重点进攻的影片是[ ]A.《保卫延安》B.《挺进大别山》C.《英雄儿女》D.《三大决战》
题型:选择题 某同学利用图甲的实验装置测量重力加速度。(1)该同学开始实验时情形如图甲所示,接通电源释放纸带。请指出该同学在实验操作中存在的两处明显错误或不当的地方:①________________;②________________。(2)该同学经修改错误并正确操作后得到如图乙所示的纸带,以计时器打点周期为T,AB、BC长度分别为s1、s2,写出由s1、s2以及T表达的重力加速度大小公式:g=________________;(3)请你给出一条有益于减少本实验误差的建议:________________________________。 查看答案
题型:选择题 先阅读短文,然后用下面方框中所给的单词或短语填空,使全文在逻辑上正确。(提示:选项中有一个是多余的。) habit / result / talk to / get over / sorry / mad I’d like to tell you a story about my best friend Jane. Last week in school we had a big fight, and she didn’t小题1:me. It all started when she asked me if she could copy my homework. I asked her why she wanted to do that, and she said that she had forgotten to do hers. I said I didn’t think it was a good idea. I said it would start a bad 小题2: and she should do her own work. She got really 小题3: at me and said she didn’t want to be my best friend anymore. I said that was OK and that I was sure she would 小题4: it. And she did. Yesterday she told me she was 小题5:. She said it was much better if she did her own work. 查看答案