a为Ag纯氯酸钾受热完全分解后得到的气体质量与时间的关系图，b为Ag氯酸钾中加了少量高锰酸钾后的混合物热完全分解后得到的气体质量与时间的关系图，其中可能正确的是_刷题宝

题干

a为Ag纯氯酸钾受热完全分解后得到的气体质量与时间的关系图，b为Ag氯酸钾中加了少量高锰酸钾后的混合物热完全分解后得到的气体质量与时间的关系图，其中可能正确的是（）

A：

B：

C：

D：

上一题下一题 0.0难度选择题更新时间:2019-05-06 01:10:03

答案(点此获取答案解析）

C

同类题1

阅读刘基的《说虎》，完成后面小题。

虎之力，于人不啻^①倍也。虎利其爪牙，而人无之，又倍其力焉，则人之食于虎也，无怪矣。

然虎之食人不恒见，而虎之皮，人常寝处之，何哉？虎用力，人用智；虎自用其爪牙，而人用物。故力之用一，而智之用百，爪牙之用各一，而物之用百，以一敌百，虽猛必不胜。故人之为虎食者，有智与物而不能用者也。

是故天下之用力而不用智，与自用而不用人者，皆虎之类也，其为人获而寝处其皮也，何足怪哉？

【注】①不啻（chì）：不止。

同类题2

阅读下列资料，判断26﹣30题：

“稻花香里说丰年，听取蛙声一片”，很容易让我们想起美丽的田园风光，稻田里有少许杂草与水稻争夺着阳光、资料、水分和空间，蝗虫、三化螟在稻秧上取食，青蛙是忠实的田园卫士，一旦发现害虫，会迅速地将其捕获…

同类题3

2011年11月，发改委出台了《关于居民生活用电实行阶梯电价的指导意见（征求意见稿）》公开征求意见和建议。对此认识正确的有（　）
①政府这种做法扩大了公民的政治权利 ②我国公民具有参与民主决策的热情和意识
③参加议政是我国公民的基本政治权利 ④公民通过社情民意反映制度直接参与民主决策

同类题4

Questionnaire
Read the questions and answer Yes or No , then you will find out how good you are.
1. When you don’t understand something, you ask questions.
2. You like listening to older people talk about the past.
3. You think that you can learn something interesting from everyone around you.
4. You are brave enough when you have to talk to people you don’t know.
5. You enjoy reading books about famous people.
6. You always see and talk to different people.
7. You are interested in learning new ways of doing things.
8. You enjoy sharing experiences with friends and learning from people of all ages.
9. You talk a lot about yourself.
10. Even if you are often wrong, you make your own decisions.
11. You hate teaching what you are good at: sports, technology, whatever.
12. Your parents don’t understand you, so you don’t talk to them much.

SCORE NOW!
Score 2 points if you answer YES to each of the first 8 questions, and 0 if you choose NO.
Score 2 points if you answer NO to each of the last 4 questions, and 0 if you choose Yes.
18-24 You are friendly and open-minded. You make people feel important by listening to what they have to say. You’ll probably succeed in learning all kinds of interesting things. Good for you!
10-16 Remember that every single person you know can teach you something. You will greatly make your life rich and colorful.
0-8 About 400 years ago, a famous writer wrote , “No man is an island.” This is still true today. Try to be more open and interested in people around you.

同类题5

改错题（每题均有一处错误，请找出并改正）
1.近代史上强占中国领土最多的国家是英国。____
2.北京大学的前身是京师大学堂，创办于洋务运动期间。____
3.某历史兴趣小组准备参观辛亥革命的发源地，他们应该去的地方是南京。____
4.最早刊登白话文、新体诗，改用新式标点符号的杂志是《民报》____

小学学科试题库

初中学科试题库

高中学科试题库