哪一种牙齿只能维持到12岁?
三年级科学牙齿

Quiz
•
Science
•
3rd Grade
•
Medium
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
乳牙
恒牙
大牙
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如果牙齿因蛀牙而形成空洞时,我们可以怎么做?
不管
请牙医来填补空洞
请皮肤医生来填补空洞
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
我是扁平形,主要是把食物切断。我是谁?
臼齿
门齿
犬齿
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
犬齿的功能是什么?
切断食物
撕裂食物
磨碎食物
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
奶奶没有牙齿了,她只能吃______的食物。
坚硬
软
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
恒牙大约在______时长齐。
18岁
21岁
25岁
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
哪一种牙齿被拔了就不会再长出来?
乳牙
恒压
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