等物质的量的下列化合物在相应条件下完全分解后得到氧气最多的是

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问题选择题

等物质的量的下列化合物在相应条件下完全分解后得到氧气最多的是（　　　）

A．KClO₃(加MnO₂催化剂，加热)

B．KMnO₄(加热)

C．H₂O₂(水溶液，加MnO₂催化剂)

D．HgO(加热)

答案

答案：A

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竟然显然果然

1．他( )是累极了，一沾床就睡着了。

2．爷爷本身就是天气预报，昨天他刚喊腰酸，今天( )就下雨了。

3．这样宏伟的建筑，( )只用十个月的时间就完成了。

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4．杰克逊大叔十分( )地望着这位年轻人，知道他是一个有尊严的人。

5．老师很( )我的绘画作品，还鼓励我要继续加油。

6．昆明花博会展出的奇花异草，吸引了国内外众多游客前来( )。

句型转换

句型转换。

1. Her favorite subject is music. (对画线部分提问)

_______ _______ her favorite subject?

2. He likes biology because it's interesting. (对画线部分提问)

_______ _______ he _______ biology?

3. Does he like to play with his cat? (作否定回答)

________, he ________.

4. We have science on Tuesday and Thursday. (对画线部分提问)

_______ do _______ _______ science?

5. Mr. Li is my favorite teacher. (对画线部分提问)

_______ _______ your favorite teacher?

6. That man is my uncle. (对画线部分提问)

_______ _______ that man?

7. This subject is interesting. (改为同义句)

This _______ _______ _______ subject.

8. They get up at seven in the morning. (改为否定句)

They _______ _______ up at seven in the morning.

9. The girls like music because it's exciting.(对画线部分提问)

_______ _______ the girls like music?

10. When do you go to bed every night? (改为同义句)

_______ _______ do you go to bed every night?