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三年级科学:牙齿 (2023)

Authored by Loo MY

Science

3rd Grade

Used 3+ times

三年级科学:牙齿 (2023)
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14 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

我们用什么牙齿来把食物切断?

Which tooth do we use to cut off the food?

臼齿

molar tooth

门齿

front teeth

犬齿

canine tooth

珐琅质

enamel

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

门齿形状是什么?

What’s the shape of the front teeth?

棱锥(léng zhuī) 形

Sharp

扁平形

Flat

凹凸不平

Uneven

没有形状

No shape

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

牙齿最外层的结构是什么?

What is the name of the most outside part of the tooth?

珐琅质

Enamel

牙龈

Gums

血管

Blood vessel

牙质

Dentin

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

乳牙有多少颗?

How much tooth does baby teeth have?

50颗

26颗

32颗

20颗

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

恒牙能维持多久?

How long can the permanent teeth last?

一年

One year

12年

12 years

一辈子

Forever

一个月

One month

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

臼齿的位置在哪里?

Where is the molar tooth?

在最前面

At the front

在门齿的旁边

Beside the front teeth

在后面的两边

At the back on two sides each.

没有臼齿

No molar tooth

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

乳牙很硬吗?

Is the baby teeth tough?

不硬,很软

Not tough it’s actually very soft

非常硬

Very tough

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