2.在下图所示的四种器具中.属于省力杠杆的是 【
查看更多】
题目列表(包括答案和解析)
在下图所示的四种器具中,属于省力杠杆的是( )
A.

用镊子夹取砝码
B.

用天平称质量
C.

用羊角锤把钉子
D.

用钓鱼竿钓鱼
查看答案和解析>>
在下图所示的四种器具中,属于省力杠杆的是( )
A.

用镊子夹取砝码
B.

用天平称质量
C.

用羊角锤把钉子
D.

用钓鱼竿钓鱼
查看答案和解析>>
在下图所示的四种器具中,属于省力杠杆的是( )
A.

用镊子夹取砝码
B.

用天平称质量
C.

用羊角锤把钉子
D.

用钓鱼竿钓鱼
查看答案和解析>>
在下图所示的四种器具中,属于省力杠杆的是( )
A.

用镊子夹取砝码
B.

用天平称质量
C.

用羊角锤把钉子
D.

用钓鱼竿钓鱼
查看答案和解析>>
在下图所示的四种器具中,属于省力杠杆的是
- A.

用镊子夹取砝码
- B.

用天平称质量
- C.

用羊角锤把钉子
- D.

用钓鱼竿钓鱼
查看答案和解析>>