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chp4 j3

Authored by 贝思慧老师 贝思慧老师

Chemistry

3rd Grade

Used 2+ times

chp4 j3
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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪项不是矿物的特征?

天然形成的

有晶体结构

是有机物

有固定化学成分

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

大部分矿物在自然界中以单质形式存在。

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列以下不是二氧化硅的性质?

不活泼

溶于水

耐腐蚀

不导电

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列物质中主要成分不是二氧化硅的是( )

硅胶

水晶

玛瑙

光导纤维

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

( ),是指矿物受到外力作用后,在任意方向上呈各种凹凸不平的断面的性质。

解离

理解

断口

刻划

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