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Y3 SC 牙齿

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Science

3rd Grade

Used 1+ times

Y3 SC 牙齿
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12 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

________是牙齿最外层,非常坚硬,呈乳白色。

牙龈

神经线

釉质

牙本质

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

________是在牙齿和牙床之间,质地柔软,呈粉红色。

牙本质

釉质

牙龈

血管

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

门齿的形状是_______,能把食物_______。

扁平形 , 切断

棱锥形 , 撕裂

表面宽阔 , 磨碎

扁平形 , 撕裂

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

臼齿的形状是_______,能把食物_______。

扁平形 , 切断

棱锥形 , 撕裂

扁平形 , 撕裂

表面宽阔 , 磨碎

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

犬齿的形状是_______,能把食物_______。

棱锥形 , 磨碎

扁平形 , 切断

棱锥形 , 撕裂

表面宽阔 , 切断

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

我今年9岁,我有一副________;爸爸妈妈有一副__________。

乳牙 , 乳牙

恒牙, 恒牙

乳牙 , 恒牙

恒牙, 乳牙

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

乳牙一共有______颗, 长得较____,适合咬较_____的食物。

20 , 小, 软

32 , 大, 硬

22 , 小, 软

30 , 大, 硬

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