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在如图所示的简单机械中,属于费力杠杆的是:A.撬棒B.镊子C.铡刀D.开瓶器
试题详情
在如图所示的简单机械中,属于费力杠杆的是:( )
A.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAD0AAAArCAYAAADL7YBvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
撬棒
B.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADUAAAArCAYAAADYOsCbAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
镊子
C.
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)
铡刀
D.
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)
开瓶器
相关试题
-
在如图所示的简单机械中,属于费力杠杆的是:( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAD0AAAArCAYAAADL7YBvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
撬棒
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADUAAAArCAYAAADYOsCbAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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镊子
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铡刀
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)
开瓶器
-
在如图所示的简单机械中,属于费力杠杆的是:( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAD0AAAArCAYAAADL7YBvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
撬棒
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)
镊子
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADgAAAAjCAYAAADBl8lGAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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铡刀
D.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAApCAYAAABz26rUAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
开瓶器
-
在如图所示的简单机械中,属于费力杠杆的是:( )
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)
撬棒
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)
镊子
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADgAAAAjCAYAAADBl8lGAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
铡刀
D.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAApCAYAAABz26rUAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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6oA5SASg6YCAANY3vBp+jiDxDLdRLFG5vL29ycfHh5KTk+nt7U38inmUlZVxHWhoaBAjv4eRANpV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)
开瓶器
-
在如图所示的简单机械中,属于费力杠杆的是( )
A.![](https://img.xintiku.com/upload/f3/82/f382c6bff39b477e5bd56ac599afada0.png)
撬棒
B.![](https://img.xintiku.com/upload/af/3d/af3d18e94db1c83b053c50e20dcf3bc8.png)
镊子
C.![](https://img.xintiku.com/upload/a6/37/a637004a4aea8d9f3a677157a2199a30.png)
铡刀
D.![](https://img.xintiku.com/upload/1c/86/1c86258fb5a921bfcb284bb70f22fa6e.png)
开瓶器
-
在如图所示的简单机械中,属于费力杠杆的是:( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAD0AAAArCAYAAADL7YBvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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=
)
撬棒
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADUAAAArCAYAAADYOsCbAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
镊子
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADgAAAAjCAYAAADBl8lGAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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=
)
铡刀
D.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAApCAYAAABz26rUAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
开瓶器
-
在如图所示的简单机械中,属于费力杠杆的是:( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAD0AAAArCAYAAADL7YBvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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=
)
撬棒
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADUAAAArCAYAAADYOsCbAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
镊子
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADgAAAAjCAYAAADBl8lGAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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=
)
铡刀
D.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAApCAYAAABz26rUAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
开瓶器
-
在如图所示的简单机械中,属于费力杠杆的是( )
A.![](https://img.xintiku.com/upload/08/35/083597d9c3647228594847756dbc531e.png)
撬棒
B.![](https://img.xintiku.com/upload/cb/b0/cbb050c50e487d840aa3968270757744.png)
镊子
C.![](https://img.xintiku.com/upload/a2/e4/a2e49d665b6cd911af231af53ff71a76.png)
铡刀
D.![](https://img.xintiku.com/upload/bf/c1/bfc1515ab94e4ac6033874133f9a6f6b.png)
开瓶器
-
在如图所示的简单机械中,属于费力杠杆的是:( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAD0AAAArCAYAAADL7YBvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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=
)
撬棒
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADUAAAArCAYAAADYOsCbAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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镊子
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铡刀
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)
开瓶器
-
在如图所示的简单机械中,属于费力杠杆的是:( )
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)
撬棒
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镊子
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADgAAAAjCAYAAADBl8lGAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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铡刀
D.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAApCAYAAABz26rUAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
开瓶器
-
在如图所示的简单机械中,属于费力杠杆的是:( )
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)
撬棒
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镊子
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铡刀
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)
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