正确答案: BD

太阳系中的行星均受到太阳的引力作用 伽利略的理想实验说明了力不是维持物体运动的原因

题目：下列关于力的说法正确的是

解析：BD

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学习资料的答案和解析：

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

He lost interest in school studies.

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

They drew their swords from the left.

[单选题]由卵细胞直接发育成胚称( )。

孤雌生殖

[单选题]佛焰花序属于肉穗花序。( )

正确