三年级科学复习:单元三
Quiz
•
Science
•
3rd Grade
•
Medium
JOHN HAW
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
P,Q和R代表牙齿的哪个部分?
P 血管
Q 釉质
R 神经线
P 牙龈
Q 牙本质
R 血管
P 釉质
Q 牙本质
R 神经线
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
以下哪项不是恒牙的特点?
共有32颗
大和坚固
大约在6岁长出
大约在6个月时长出
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
乳牙共有 __ 颗,而恒牙共有 __ 颗。
18、20
20、32
32、36
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
牙齿的哪个构造是构成牙齿的主要部分?
釉质
牙龈
牙本质
神经
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
人类有哪三种牙齿?
虎牙、门牙 和 大牙
尖尖的牙、平平的牙 和 扁扁的牙
门齿、犬齿 和 臼齿
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
图中显示一种牙科治疗技术。
请问这个技术的名称是什么?
根管治疗
补牙
牙齿矫正
7.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
多吃蔬菜可以 _______________。
调节体温
预防便秘
视力降低
提供精力
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