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初二科学

Authored by neoh yan

Science

7th Grade

Used 7+ times

初二科学
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40 questions

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1.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

请写出大气压的值

2.

FILL IN THE BLANK QUESTION

1 min • 1 pt

(气体的温度)

一定质量的气体,在体积不变的条件下,压强随温度的降低而

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

空气密度越 ,气体压强越

小,大

小,小

大,大

大,小

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

(气体的体积)

在温度不变时,一定质量的气体,体积越小,压强越

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪项是错误的

溶质是被溶解的物质

溶液能溶解其他物种的物质

水是万能溶剂

常用的溶剂还有酒精,汽油等

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪项是对的

对流层的密度小

大气层不能为地球上的生物提供氧气

大气层不能阻挡对地球生物造成危害的紫外线辐射

外层的密度小

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

pH值小于​ 的降水

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