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2年级科学 单元9: 地球

Authored by WONG Moe

Science

1st Grade

Used 8+ times

2年级科学 单元9: 地球
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

空气是由___、___等气体组成的。

煤气、氧气

湿气、二氧化碳

氧气、二氧化碳

氧气、热气

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪个不是水流受阻会可能会带来的影响?

火灾

闪电式水灾

水供不足

河水发出臭味

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

水从____处往____处流。

高,高

高,低

低,高

低,低

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

什么是风?

流动的氧气

流动的二氧化碳

流动的湿气

流动的空气

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

水___形成水蒸气升到空中。

受热

受冷

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

风有什么好处?

摧毁建筑物

吹到树木

利用风力发电

破坏农作物

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

小水滴___成云。

蒸发

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