9-10高一下·河北石家庄·期末
1 . 下图是一系列有机物的结构简图,图中“小黑点”表示原子,两黑点之间的“短线”表示化学键,按图中结构第10个图中有化学键的个数是
![](https://img.xkw.com/dksih/QBM/2010/7/19/1569794942189568/1569794947194880/STEM/936d98a724b54622a8367587e7fc8d0e.png?resizew=320)
![](https://img.xkw.com/dksih/QBM/2010/7/19/1569794942189568/1569794947194880/STEM/936d98a724b54622a8367587e7fc8d0e.png?resizew=320)
A.60 | B.51 | C.49 | D.42 |
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19-20高一下·江西·开学考试
名校
2 . 如图所示,坐标纸上的每个单元格的边长为1,由下往上的六个点:1,2,3.4,5,6的横、纵坐标分别对应数列
的前12项,如下表所示.
按如此规律下去,请归纳,则
等于____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63c6e0c2d16cda7e8b2b8c588adeb8ae.png)
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | … |
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | … |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e553b6738dabb9b1dff0ad5192df54.png)
![](https://img.xkw.com/dksih/QBM/2020/6/15/2485030134677504/2485059443638272/STEM/dedfc287-10cd-4dde-9c9d-4e8772be24be.png?resizew=182)
您最近一年使用:0次
3 . 如图,坐标纸上的每个单元格的边长为1,由下往上的六个点:1,2,3,4,5,6的横纵坐标分别对应数列
的前12项,如下表所示:
按如此规律下去,则
( )
![](https://img.xkw.com/dksih/QBM/2011/12/29/1570668164268032/1570668169535488/STEM/bcc5b8ced645451f937e0c09638ebea9.png?resizew=309)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/082162ed9e30f5050fd9c22b842dce68.png)
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
按如此规律下去,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a6e5ae1859fb9e405dfa2d9fe43b02.png)
![](https://img.xkw.com/dksih/QBM/2011/12/29/1570668164268032/1570668169535488/STEM/bcc5b8ced645451f937e0c09638ebea9.png?resizew=309)
A.501 | B.502 |
C.503 | D.504 |
您最近一年使用:0次
19-20高一·全国·课后作业
4 . 用同样规格的黑、白两色颜色的正方形瓷砖按下图方式铺地板,那么随着图形个数的增加,黑色瓷砖的个数怎样变化?将下表补充完整,你能写出
与
之间的函数表达式吗?
![](https://img.xkw.com/dksih/QBM/2020/8/18/2530588105105408/2531285629304833/STEM/b4c5935ac4984e81bb33ee1120919672.png?resizew=472)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://img.xkw.com/dksih/QBM/2020/8/18/2530588105105408/2531285629304833/STEM/b4c5935ac4984e81bb33ee1120919672.png?resizew=472)
图形个数 | 1 | 2 | 3 | 4 | … |
黑色瓷砖的个数 | … |
您最近一年使用:0次
10-11高一下·河北衡水·期末
5 . 如图.五角星魅力无穷,移动点由A处按图中数字由小到大的顺序依次运动,当第一次结束回到A处时,数字为6,按此规律无限运动,则数字2010应在
![](https://img.xkw.com/dksih/QBM/2011/6/22/1570246177529856/1570246182404096/STEM/bd4d99fb3a6b49dfbf706b54dd3c6f3a.png?resizew=155)
![](https://img.xkw.com/dksih/QBM/2011/6/22/1570246177529856/1570246182404096/STEM/bd4d99fb3a6b49dfbf706b54dd3c6f3a.png?resizew=155)
A.B处 | B.C处 | C.D处 | D.E处 |
您最近一年使用:0次