“数学是将科学现象升华到科学本质认识的重要工具”.比如化学中,甲醇的化学式为
,乙醇的化学式为
,丙醇的化学式为
可以预见醇类物质的分子中碳原子和氢原子的数目满足一定的数学规律,则碳原子的数目为15的醇的化学式是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a5c6d26e9821c59de16c928dcb79f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b1f4bd1fad097af3d4b0e3f32a71a9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b72d732131964b70b514fa612bb5affb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-05-12 20:03:16
|
相似题推荐
单选题
|
较易
(0.85)
【推荐1】计算3的正整数次幂:
;
;
;
;
;
;
;
;
,归纳各计算结果中的个位数字规律,可得
的个位数字为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a8d2e5a71a80815b3454e2fe4140e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/738317df2665c72d92812b7714675549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a52685b77856d28af3beed027d725506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14f48b3a441172a0073be2877988167b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914832f3edf43812c7ffa2c7fea02620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d58a9daa5736ec597957257887a5d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda6ec0bfd76607159275d9af0c52467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7389f87d2babaa823152be1bd4f36ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07096af3b99fd1cb11c31f19a2c6408e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09dbcf709e9a53e19464e811f3d7ca34.png)
A.1 | B.3 | C.7 | D.9 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】已知整数
满足下列条件:
以此类推,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8943b7196aca739e5aa14b894f781460.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f146d83be44e834769fa81ed05eb39db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd71bc7e6668f90f259ad0b06dd60c2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次