以下哪项有关恒牙的说明是正确的?
三年级科学

Quiz
•
Science
•
3rd Grade
•
Medium
Eeze Wee
Used 324+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
哪种动物与其他动物有不相同的繁殖方式?
蛇
牛
老虎
狮子
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
松鼠和兔子有什么共同的特征?
有羽毛
有毛发
有外壳
有利爪
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪组是肉食动物?
羊、牛、豹和狮子
豹、老鹰、老虎和鳄鱼
狐狸、大象、狮子和老虎
老鼠、兔子、企鹅和北极熊
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下的植物都会张出果实,除了
黑藻
木瓜
白香果
玉蜀黍
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下是植物对人类和动物的重要性,除了
食物来源
提供氧气
提供庇护所
制作各种装饰品
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