
Y3 SC 第三课 认识我们的牙宝贝
Authored by E E
Science
1st Grade
Used 11+ times

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28 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小孩有多少颗乳牙?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
成人有多少颗恒牙?
32
23
20
30
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
人类一生中可长出几次牙齿?
一
两
三
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
乳牙共有______颗,而恒牙共有________颗。
18、20
20、32
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
乳牙只能维持到大约________岁,而恒牙则可以维持__________。
6,一辈子
12,一辈子
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
牙齿的哪一个部分让人感到冷和热?
牙龈
釉质
神经
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪项是防止蛀牙滋长的方法?
饭后不漱口
不吃水果和蔬菜
经常吃糖果
定时让医生检查
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