下列关于力的说法正确的是

【名词&注释】

伽利略(galileo)、孤雌生殖(parthenogenesis)、理想实验(ideal experiment)、太阳系(solar system)、人造地球卫星(artificial earth satellite)、卵细胞(egg cell)、作用力和反作用力(action and reaction)

[多选题]下列关于力的说法正确的是

A. 作用力和反作用力^{(action and reaction)}作用在同一物体上
B. 太阳系中的行星均受到太阳的引力作用
C. C 运行的人造地球卫星所受引力的方向不变
D. 伽利略的理想实验说明了力不是维持物体运动的原因

查看答案&解析查看所有试题

学习资料：

[单选题]Why did David decide to leave school and start working?

A. He received lots of job offers.
B. He was eager to help his mother.
C. He lost interest in school studies.
D. He wanted to earn his own living.

[单选题]What do we know about the rich men in the 17th century?

A. They tended to wear clothes without bottons.
B. They were interested in historical matters.
C. They were mostly dressed by servants.
D. They drew their swords from the left.

[单选题]由卵细胞^{(egg cell)}直接发育成胚称( )。

A. 孤雌生殖
B. 营养生殖
C. 无孢子生殖
D. 无配子生殖

[单选题]佛焰花序属于肉穗花序。( )

A. 正确
B. 错误

本文链接：https://www.51ksbd.net/show/xxwpw4.html