
三年级-牙齿
Authored by TAN Moe
Science
3rd Grade
Used 106+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪项有关恒牙的说明是正确的?
共有20颗
比较大和坚固
只适合咬软的食物
只能维持到大约12岁
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
牙齿的哪个部分是人体最坚硬的部分?
牙质
牙龈
神经线
珐琅质
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小孩有多少颗乳牙?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
成人有多少颗恒牙?
32
23
20
30
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小孩在几岁换牙?
6岁
12岁
6个月
12个月
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
以下哪项有关恒牙的说明是不正确的?
一共有32颗
坚硬度较坚固
能够维持一辈子
被拔掉后还会长出新牙
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下面哪项不是健康牙齿所带来的好处?
又漂亮的笑容
能帮助发音
能嘲笑其他牙齿不整齐的人
能快乐享用食物
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