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三年级-牙齿

Authored by TAN Moe

Science

3rd Grade

Used 106+ times

三年级-牙齿
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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

Media Image

小孩有多少颗乳牙?

10
20
12
32

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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