根据下列5个图形及相应点的个数的变化规律,试猜测第12个图中有( )个点.
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878733508993024/2881444184678400/STEM/d7abedff-5ced-486e-a572-ebd6f70cc06a.png?resizew=343)
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878733508993024/2881444184678400/STEM/d7abedff-5ced-486e-a572-ebd6f70cc06a.png?resizew=343)
A.133 | B.143 | C.157 | D.165 |
更新时间:2021-12-27 10:56:06
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【推荐1】用点按如图所示的规律拼漏斗形图案,其中第①个图案中有3个点,第②个图案中有7个点,第③个图案中有12个点,第④个图案中有18个点,按此规律排列下去,则第⑦个图案中点的个数为( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/7/b3ef060c-915f-40fb-afc8-9feae4881a7b.png?resizew=434)
A.33 | B.42 | C.52 | D.63 |
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【推荐2】如图,下面是按照一定规律画出的“数形图”,经观察可以发现:图
比图
多出2个“树枝”,图
比图
多出4个“树枝”,图
比图
多出8个“树枝”,…,照此规律,图
比图
多出( )“树枝”.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/83639a9c-12df-43f4-b6ce-5988ca64fdde.png?resizew=495)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b56e44e4f0424a2b7a45567120a2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e47cd514b2920609e3781c87df6ab70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b56e44e4f0424a2b7a45567120a2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b832048aa929fbb3542f1ccfccb6fe19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f762938f5c78eb72bafbb13bf85cba1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/83639a9c-12df-43f4-b6ce-5988ca64fdde.png?resizew=495)
A.56 | B.64 | C.124 | D.128 |
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