1 . 中国象棋中棋子“马”的走法规则是走“日”字的对角线(图中楚河汉界处的“日”字没有画出),如图,马从点
处走出一步,只能到达点
,
,
中的一处则马从点
出发到达对方“帅”所在的
处,最少需要的步数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://img.xkw.com/dksih/QBM/2020/6/29/2494934790660096/2496994412978176/STEM/0d86c4afbd1244e28ebfea7a3cf60c2d.png?resizew=358)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://img.xkw.com/dksih/QBM/2020/6/29/2494934790660096/2496994412978176/STEM/0d86c4afbd1244e28ebfea7a3cf60c2d.png?resizew=358)
A.5 | B.6 | C.7 | D.8 |
您最近一年使用:0次
2 . 对变量
进行回归分析时,依据得到的4个不同的回归模型画出残差图,则下列模型拟合精度最高的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7edac77829e7aec29f8980f577959098.png)
A. ![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
3 . 如图所示的阴影部分由方格纸上3个小方格组成,我们称这样的图案为
形(每次旋转90°仍为
形的图案),那么在
个小方格组成的方格纸上可以画出不同位置的
形需案的个数是
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/bb2dbad5-336f-44c7-a862-315933c7ae0c.png?resizew=132)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67dde0704f1cbf18977df5b4799b4d83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/bb2dbad5-336f-44c7-a862-315933c7ae0c.png?resizew=132)
A.36 | B.64 | C.80 | D.96 |
您最近一年使用:0次
2019-09-23更新
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547次组卷
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3卷引用:上海市松江区2018-2019学年高二第二学期期末考试数学试题