四年级上册复习
Authored by tao wu
Science
1st - 5th Grade
Used 7+ times
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1、声音是由物体 产生的。
振动
移动
摆动
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
当物体停止振动后 （会/不会）发出声音。
不会
会
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
力的单位是？
帕斯卡
千克
牛顿
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
游泳时听不到声音？
错
对
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
鞋底的花纹是为了（ ）摩擦力？
减小
增大
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
食物中的淀粉遇到碘酒会变成蓝色。
错
对
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
多吃脂肪会发胖且易得病，所以含有脂肪的食物我都不吃。
对
错
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