如图,数轴上
、
两点分别对应实数
、
,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/2015/12/14/1573941523218432/1573941528633344/STEM/95453d77-7308-4eed-8a59-74bc1dc2e57d.png)
![](https://img.xkw.com/dksih/QBM/2016/2/19/1573973520580608/1573973526151168/STEM/81ed2bb944d74aed950ad70c82fbacc2.png)
![](https://img.xkw.com/dksih/QBM/2016/2/19/1573973520580608/1573973526151168/STEM/d82d677107824e37b7931d1c14716033.png)
![](https://img.xkw.com/dksih/QBM/2016/2/19/1573973520580608/1573973526151168/STEM/695ffabd3ff14becb8bdddb83309f541.png)
![](https://img.xkw.com/dksih/QBM/2016/2/19/1573973520580608/1573973526151168/STEM/cd70464d89c64b5a9f1b19411f48d41c.png)
![](https://img.xkw.com/dksih/QBM/2015/12/14/1573941523218432/1573941528633344/STEM/95453d77-7308-4eed-8a59-74bc1dc2e57d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
更新时间:2016-12-06 03:35:08
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【推荐1】a,b,c在数轴上的对应点的位置如图所示,下列式子:①b+c>0;②a+b>a+c;③bc>ac;④ab>ac.其中正确的有( )
![](https://img.xkw.com/dksih/QBM/2019/1/31/2130483048448000/2131366065602560/STEM/db6370fdb1124d1799d7df6ff1ea3dbf.png?resizew=335)
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单选题
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【推荐2】实数a,b,c,d在数轴上对应点的位置如图所示,则正确的结论是( )
![](https://img.xkw.com/dksih/QBM/2020/2/10/2396214006931456/2396272984342528/STEM/122a6023ddf14fd3800bec096a6d9ba9.png?resizew=173)
![](https://img.xkw.com/dksih/QBM/2020/2/10/2396214006931456/2396272984342528/STEM/122a6023ddf14fd3800bec096a6d9ba9.png?resizew=173)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】对于
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efa205ece6474e2e90c9dc6811a29e0.png)
A.减少5 | B.增加5 | C.减少7 | D.增加7 |
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适中
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【推荐2】下列运算结果为负值的是( )
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