牙齿常识
Authored by TAY Moe
Science
1st - 6th Grade
Used 6+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一个成人有多少颗牙齿？
10颗
20颗
32颗
42颗
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
以下哪些是人类的牙齿种类？
臼齿
门齿
大齿
犬齿
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪些食物对牙齿有益？
I
I 和 II
II 和 III
I, II 和 III
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪个是正确的？
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
我们一天至少要刷牙多少次？
一次
两次
五次
十次
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
牙齿最硬的部分称为____。
神经
牙本质
釉质
牙龈
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下有关乳牙和恒牙，哪项是正确的？
乳牙的数量多，恒牙的数量少。
乳牙比较坚固，恒牙比较不坚固。
乳牙有20颗，恒牙有32颗。
乳牙比较大，恒牙比较小。
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