四年级科学练习
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Science
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Professional Development
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10 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
人类在吸气时,空气进入肺的过程?
空气 鼻子 肺 气管
空气 肺 鼻子 气管
空气 鼻子 气管 肺
空气 肺 鼻子 气管
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把废物如汗液、尿素、二氧化碳及多余的水分排出体外的过程指的是
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
全部都是科学程序技能,除了
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下是人类的基本需求,除了。。。
空气
水
庇护所
电脑
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下面是有关人类生命过程的说明。
人类需要排泄和排遗,以确保身体的健康。
什么是排遗?
调节体温的过程
把废物排出体外的过程
把多余的水分排出体外的过程
以食物渣滓的形式排出体外的过程
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是呼吸率?
一分钟内心跳的次数
胸腔在固定的时间内扩张和收缩的次数
氧气和二氧化碳转换的过程
氧气和二氧化碳转换的效率
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图显示一种人类的器官
哪项有关上述器官的说明是正确的?
让气体进行交换的器官
是人体主要的排遗器官
所排出的废物中含有尿素
帮助人体大量的排出体内的水分
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