1 . 美国生物学家和人口统计学家雷蒙德·皮尔提出一种能较好地描述生物生长规律的生长曲线,称为“皮尔曲线”,常用的“皮尔曲线”的函数解析式可以简化为
的形式.已知
描述的是一种植物的高度随着时间
(单位:年)变化的规律.若刚栽种时该植物的高为1米,经过一年,该植物的高为1.5米,要让该植物的高度超过2.8米,至少需要( )年.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710ca6a09c9672d8755211a4d0876b8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91524b4103092643cb58fb5a0a289542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.3 | B.4 | C.5 | D.6 |
您最近一年使用:0次
2 . 纳皮尔精确的对数定义来源于一个运动的几何模型:假设有两个沿两平行直线运动的动点C和F,其中点C从线段
的端点A向B运动,点F从射线
的端点D出发向E运动,其中
的长为a,
的长无限大.若
的长度满足在第t秒时
,
的长度满足在第t秒时
,记
,
,则x是关于y的一个对数函数.根据以上定义,当
时,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/982e0f29-db42-49dc-b39b-2b71a6ac3c40.png?resizew=167)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9700a4367fbfcd6aa0ffa04ef57ce4c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98abf334034d9b0f63dea108262cf857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d30747569ae3b6b493273f0b190e1932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19ea3b26d207bf9a05934dd0c1e0fa12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eb0728920d67d36959e9b39a7365072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/982e0f29-db42-49dc-b39b-2b71a6ac3c40.png?resizew=167)
A.15 | B.18 | C.21 | D.24 |
您最近一年使用:0次
3 . 医学治疗中常用放射性核素
产生
射线,而
是由半衰期相对较长的
衰变产生的.对于质量为
的
,经过时间t后剩余的
质量为m,
是以t为自变量的指数函数,其部分图象如图.从图中可以得到
的半衰期为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deeae77dc16c05635531ee5278863937.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deeae77dc16c05635531ee5278863937.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e873307741f49ed377eb13fe9b07cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e93d8fb77f5bd2c0fc690752dfd771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e873307741f49ed377eb13fe9b07cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e873307741f49ed377eb13fe9b07cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/603622cd2407af65b7c40f9d1713f8ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e873307741f49ed377eb13fe9b07cb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/0926b8c0-eda9-44f0-8b71-9e26588a2396.png?resizew=169)
A.67.3d | B.101.0d | C.115.1d | D.124.9d |
您最近一年使用:0次
名校
解题方法
4 . 已知函数
,设
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d9a4c09d2c7712343bcd6b91449a062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655c473a2832a9ba25501baa647f9809.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
A.1 | B.![]() | C.9 | D.![]() |
您最近一年使用:0次
名校
5 . 科赫
曲线是几何中最简单的分形.科赫曲线的产生方式如下:如图,将一条线段三等分后,以中间一段为边作正三角形并去掉原线段生成1级科赫曲线“
”,将1级科赫曲线上每一线段重复上述步骤得到2级科赫曲线,同理可得3级科赫曲线……在分形中,一个图形通常由N个与它的上一级图形相似,且相似比为r的部分组成.若
,则称D为该图形的分形维数.那么科赫曲线的分形维数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/1/cb30e7f3-f506-497f-8a83-5a89d1b63f49.png?resizew=109)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9558296e07af5a31e79ae72d6eef66.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/1/2d89392f-6fce-4c2f-a025-ff553e9204e6.png?resizew=86)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e43144347063770f8e095612a650ae4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/1/cb30e7f3-f506-497f-8a83-5a89d1b63f49.png?resizew=109)
A.![]() | B.![]() | C.1 | D.![]() |
您最近一年使用:0次
2024-02-10更新
|
374次组卷
|
3卷引用:北京市海淀区2023-2024学年高一上学期期末考试数学试题
6 . 张遂(僧一行,公元
年),中国唐代著名的天文学家.他发明了一种内插法近似计算原理,广泛应用于现代建设工程费用估算.近似计算公式如下:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3e7d580bbefc5cdf91931476ae0eca.png)
,其中
为计费额的区间,
,
为对应于
的收费基价,
为该区间内的插入值,
为对应于
的收费基价.如下表所示.则
的值估计为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b82972d937117c4f27664915c60573a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3e7d580bbefc5cdf91931476ae0eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e4978561aae63ce5254c8e3e421c12d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351629c193354cdcf202133052e45028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9769116ec47353514e6b7fb7b17216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/542893790445d6d888d9ff91fd215c9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
计费额x(单位:万元) | 500 | 700 | 1000 |
收费基价 | 16.5 | 30.1 |
A.18.53 | B.19.22 | C.21.94 | D.28.22 |
您最近一年使用:0次
名校
7 . 德国著名的数学家高斯是近代数学奠基者,用其名字命名的高斯函数为
,其中
表示不超过x的最大整数,例如
,
.定义符号函数
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff0600eebadfc8c95c0bd19296fed154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf813e9500eebd474511b865b876ea4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fe1e778c9e668594c42b77459328c63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316edc66da4154429f659bc88c47766c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709acecb8c6987f243b67cc151b3e281.png)
A.![]() | B.![]() | C.1 | D.2 |
您最近一年使用:0次
2024-01-31更新
|
250次组卷
|
3卷引用:安徽省阜阳市2023-2024学年高一上学期期末联考数学试卷
解题方法
8 . “学如逆水行舟,不进则退
心似平原跑马,易放难收”,
增广贤文
是勉励人们专心学习的
如果每天的“进步”率都是
,那么一年后是
如果每天的“落后”率都是
,那么一年后是
一年后“进步”的是“落后”的
倍
现假设每天的“进步”率和“落后”率都是
,要使“进步”的是“落后”的
倍,则大约需要经过
参考数据:
,
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ca6fa9955690cec01db601e3abce0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b0e787c1d82071c825975348698f58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/461950348087cdb06ec28d7569d14c1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a317f002fd3ae7f3b041d4078e81fe07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06640c165056a952b81b13d625f264ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a317f002fd3ae7f3b041d4078e81fe07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a714f6374d4745278ba68ddd0b83ace9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77f141d562af3acb28e30ab6e8ded45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ee628efd6b2f7296c106dd5cbae42f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efba7147f5b9ced8bc4a72f0a9fb8af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/282724a3b2b45f1966a91389fdcedfcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14ace072593edc71ae045a7650241f88.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 火箭必须达到第一宇宙速度
,才可以绕地球轨道飞行.在不考虑空气阻力的情况下,火箭的最大速度
(单位:
)、燃料的质量
(单位:
)和火箭(除燃料外)的质量
(单位:
)满足
(e为自然对数的底).当燃料质量
为火箭(除燃料外)质量
的多少倍时,火箭的最大速度可以达到
(
,结果精确到0.1).( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b544341e7757e8f960f351622b1f53f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc13a607ac0c7f76d252d7cb1bb040fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53afeaf21f93091b71608d21540be239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f7c4a8558eff6427d22b6c0c855721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f7c4a8558eff6427d22b6c0c855721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a237267d3e771bc7c12761ecbf4aa8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92be76e6981e7b5c815c49c906ec83cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70559d4c1408ed986b4ba646d045d023.png)
A.48.5 | B.51.2 | C.53.8 | D.58.4 |
您最近一年使用:0次
10 . 我国著名数学家华罗庚曾说:“数缺形时少直观,形少数时难入微,数形结合百般好,隔离分家万事休”.在数学的学习和研究中,有时可凭借函数的图象分析函数解析式的特征,已知函数
在的大致图象如图所示,则函数
的解析式可能为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/1f59c8cc-8943-4ab8-9fc6-274348ad050c.png?resizew=210)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/1f59c8cc-8943-4ab8-9fc6-274348ad050c.png?resizew=210)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次