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初一科学上册CH7

Authored by Ariel Lee

Science

1st Grade

Used 296+ times

初一科学上册CH7
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16 questions

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1.

OPEN ENDED QUESTION

30 sec • Ungraded

你的名字和班级

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2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

固体没有流动性,但液体和气体具有流动性

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

气体看不见摸不着,因此气体没有质量。

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

在光学显微镜下,我们可以观察到水的分子。

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

液体和气体可以发生扩散现象,但固体不能。

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

天气炎热时,汽车轮胎内的气不要充得太足,以免轮胎内气体膨胀而引起爆胎。

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

水结冰,体积会变大。

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