试题与答案

一钢罐内装有质量为20kg的液化石油气，这些液化石油气完全燃烧放出的热量为___

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题型：填空题

题目：

一钢罐内装有质量为20kg的液化石油气，这些液化石油气完全燃烧放出的热量为__________J。（液化石油气的热值为3.5×107J/kg）

答案：

7×108

考点：热值
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题型：完形填空
完形填空。阅读下面短文，从短文后所给的四个选项中，选出可以填入空白处的最佳选项。
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阅读下面短文，根据短文内容回答问题。

I’m Molly Taylor. I’m happy to come here and give you a lesson. Some students think learning English is difficult, but if you know how to study English, you will find it very interesting and easy. Here are some ways to help you.

◆Don’t be afraid of speaking English.

◆Listen to English speakers often.

◆Watch lots of English movies and TV.

◆Listen to English songs.

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◆Do many English exercises.

◆Write to your friends in English.

There are so many ways to study English and you can use your favorite ones. But the most important thing is to study English every day. When you meet some difficulties (困难), you can ask your teachers or classmates for help.

Do your best and you will do well in English.

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小题3:What is the most important thing when learning English?

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小题4:What can students do when they meet difficulties?

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小题5:What is the passage about?

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