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如图所示的四种工具中,属于省力杠杆的是A.镊子B.天平C.撬棒D.钓鱼竿
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如图所示的四种工具中,属于省力杠杆的是( )
A.
![](https://img.xintiku.com/upload/58/f1/58f1b6e5c54749973b3258c7ec466c20.png)
镊子
B.
![](https://img.xintiku.com/upload/bb/ff/bbff68e3918623d58632603eb7770fc5.png)
天平
C.
![](https://img.xintiku.com/upload/f0/03/f00318c467a13c437d0e3544237fe68c.png)
撬棒
D.
![](https://img.xintiku.com/upload/c6/9e/c69e328efeb6c7229a24d5413006f154.png)
钓鱼竿
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如图所示的四种工具中,属于省力杠杆的是( )
A.![](https://img.xintiku.com/upload/58/f1/58f1b6e5c54749973b3258c7ec466c20.png)
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B.![](https://img.xintiku.com/upload/bb/ff/bbff68e3918623d58632603eb7770fc5.png)
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C.![](https://img.xintiku.com/upload/f0/03/f00318c467a13c437d0e3544237fe68c.png)
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B.![](https://img.xintiku.com/upload/1e/f2/1ef276d02e70c5f532469e8a97512cd5.png)
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C.![](https://img.xintiku.com/upload/ca/80/ca80cb0d1fefbecd88f24cf0a73b71ed.png)
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B.![](https://img.xintiku.com/upload/96/28/9628c78119e4ffc872977038083c4fa8.png)
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C.![](https://img.xintiku.com/upload/2c/c7/2cc7c069b523350dfdc1fa9caaef7860.png)
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B.![](https://img.xintiku.com/upload/bc/63/bc63a67f6deed3f838c907ad5b710471.png)
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C.![](https://img.xintiku.com/upload/d0/e0/d0e0661adf75a295d78524acfaad1345.png)
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D.![](https://img.xintiku.com/upload/a6/20/a620491c05d05f2eb00c23f4c15e64c7.png)
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A.![](https://img.xintiku.com/upload/a8/aa/a8aa0999bfd878c451530d7dc4a9120d.png)
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B.![](https://img.xintiku.com/upload/ba/e1/bae143d4a142c2ddbbfc140281407175.png)
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C.![](https://img.xintiku.com/upload/89/58/8958212de35458b76f0cabef60c2f98d.png)
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