14-15高三上·贵州遵义·阶段练习
1 . 如图,在直三棱柱
中,
,且
.
(1)求证:平面
⊥平面
;
(2)设
是
的中点,判断并证明在线段
上是否存在点
,使
‖平面
;若存在,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f47d6a88e962cd790d2f159c021ec1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aba147ef7f44248b5002cebebc6644e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9007977155e06426eb6983775e0839af.png)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea848cd2aa3a464618020475097949fc.png)
![](https://img.xkw.com/dksih/QBM/2014/8/6/1571835590991872/1571835596881920/STEM/c93d1b395e744070af56f2a489e9df65.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea848cd2aa3a464618020475097949fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2093e4e0580dd53e3d25769d05ab9f9c.png)
![](https://img.xkw.com/dksih/QBM/2014/8/6/1571835590991872/1571835596881920/STEM/881f511785094ef5aecbc3894e8afaa3.png)
您最近一年使用:0次
14-15高三上·贵州遵义·阶段练习
2 . 已知函数
.
(1)若曲线
在
处的切线为
,求
的值;
(2)设![](https://img.xkw.com/dksih/QBM/2015/1/12/1571959319609344/1571959325589504/STEM/3d3eea81768840109f218466174f7983.png)
,
,证明:当
时,
的图象始终在
的图象的下方;
(3)当
时,设
,(
为自然对数的底数),
表示
导函数,求证:对于曲线
上的不同两点
,
,
,存在唯一的![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
,使直线
的斜率等于
.
![](https://img.xkw.com/dksih/QBM/2015/1/12/1571959319609344/1571959325589504/STEM/1b4c32a0cfb14de8bc6a26a54311fedd.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6513e7d1ad16ed0ba54da88b098dc1d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://img.xkw.com/dksih/QBM/2015/1/12/1571959319609344/1571959325589504/STEM/3d3eea81768840109f218466174f7983.png)
![](https://img.xkw.com/dksih/QBM/2015/1/12/1571959319609344/1571959325589504/STEM/136995a0dea24df88860330a01092f62.png)
![](https://img.xkw.com/dksih/QBM/2015/1/12/1571959319609344/1571959325589504/STEM/9d2148a4da27426cbc7db6e777e7a69c.png)
![](https://img.xkw.com/dksih/QBM/2015/1/12/1571959319609344/1571959325589504/STEM/8df1a95edcd34a89b926fc168f2aa20d.png)
![](https://img.xkw.com/dksih/QBM/2015/1/12/1571959319609344/1571959325589504/STEM/df61580512c44e8691de8efbd7e5053c.png)
![](https://img.xkw.com/dksih/QBM/2015/1/12/1571959319609344/1571959325589504/STEM/fea3e068dd124c0ca98cbceba9b3347f.png)
(3)当
![](https://img.xkw.com/dksih/QBM/2015/1/12/1571959319609344/1571959325589504/STEM/d6b34f6dada044619914cecb62849103.png)
![](https://img.xkw.com/dksih/QBM/2015/1/12/1571959319609344/1571959325589504/STEM/76a965da5b87446a9308156fdaaf7d8b.png)
![](https://img.xkw.com/dksih/QBM/2015/1/12/1571959319609344/1571959325589504/STEM/3865acfd7def4e79b7d712d720b9c02c.png)
![](https://img.xkw.com/dksih/QBM/2015/1/12/1571959319609344/1571959325589504/STEM/52b6a1f9256449b882a840dfa9462d64.png)
![](https://img.xkw.com/dksih/QBM/2015/1/12/1571959319609344/1571959325589504/STEM/2ec2086f962d4e64be08cb307f6d031b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ff82ebdfad5e7de1c7487b0b817a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a53e311ee0b5085e7e5a45c606daa5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b5300f2d0cdf34de189a6be1b518891.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/631f75b2df538cc121bad64d9deb774d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2015/1/12/1571959319609344/1571959325589504/STEM/e89b836c01ae46a68c19ed11ecb9cf6e.png)
您最近一年使用:0次
2013·河南郑州·二模
名校
解题方法
3 . 如图所示,矩形
中,
,
.
、
分别在线段
和
上,
,将矩形
沿
折起.记折起后的矩形为
,且平面
平面
.
![](https://img.xkw.com/dksih/QBM/2022/3/6/2930444488204288/2942479592046592/STEM/ddbc4f72edd84c42b944b459b2845f4e.png?resizew=400)
(1)求证:
平面
;
(2)若
,求证:
;
(3)求四面体
体积的最大值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c91baecb97fadd4f8ab49e6effcbc04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37cfd0530c5623a89ec6a6652a367e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4883c0323525b8464b7b6ad2d421e907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb0bd784f9ca4d5a099b5e55c9a0374.png)
![](https://img.xkw.com/dksih/QBM/2022/3/6/2930444488204288/2942479592046592/STEM/ddbc4f72edd84c42b944b459b2845f4e.png?resizew=400)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d11e0a64470aac58556c3c99c18be5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13576338960eb920b0d69e91479d07dd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38c5c9cc1ed4bce98b7fae77e70b227f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5bdeff879f62f66b12fbd4cb16e3b4a.png)
(3)求四面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e53190fae986b40acaa74a089e4214ba.png)
您最近一年使用:0次
2022-03-23更新
|
3623次组卷
|
21卷引用:2013届河南省中原名校高三下学期第二次联考文科数学试卷
(已下线)2013届河南省中原名校高三下学期第二次联考文科数学试卷山东师范大学附属中学2017-2018学年高一期末考试数学试题【校级联考】江西省南昌市八一中学、洪都中学、麻丘高中等七校2018-2019学年高二下学期期中考试数学(理)试题安徽省淮北一中、合肥六中、阜阳一中、滁州中学2018-2019学年高二上学期期末考试数学(文)试题(已下线)专题39 空间几何体综合练习-2021年高考一轮数学单元复习一遍过(新高考地区专用)(已下线)专题39 空间几何体综合练习-2021年高考一轮数学(文)单元复习一遍过人教B版(2019) 必修第四册 逆袭之路 第十一章 立体几何初步 11.4.1 直线与平面垂直贵州省黔西南州金成实验学校2022-2023学年高一下学期5月月考数学试题西藏自治区拉萨中学2020-2021学年高一下学期期末考试数学试题(已下线)专题8.3 立体几何初步 章末检测3(难)-【满分计划】2021-2022学年高一数学阶段性复习测试卷(人教A版2019必修第二册)(已下线)第八章 立体几何初步(基础训练)A卷-2021-2022学年高一数学课后培优练(人教A版2019必修第二册)山西省太原师范学院附属中学、太原市师苑中学校2021-2022学年高一下学期第四次联考数学试题广西河池市2021-2022学年高一下学期八校第二次联考数学试题(已下线)期末押题预测卷01-2021-2022学年高一数学下学期期末必考题型归纳及过关测试(人教A版2019)广东省茂名市电白区2021-2022学年高一下学期期末数学试题苏教版(2019) 必修第二册 一课一练 第13章 立体几何初步 单元检测安徽省芜湖市华星学校2022-2023学年高二上学期入学考试数学试题湖南省长沙市浏阳市2022-2023学年高一下学期期末数学试题四川省绵阳市三台中学校2021-2022学年高一下学期第四学月月考测试数学试题(已下线)模块四 专题4 暑期结束综合检测4(能力卷)(已下线)第二章 立体几何中的计算 专题七 空间范围与最值问题 微点3 面积、体积的范围与最值问题(一)【基础版】
名校
4 . 如图,已知椭圆
:经过点
,离心率
.
![](https://img.xkw.com/dksih/QBM/2021/3/14/2677913573007360/2790324074610688/STEM/bdcb387c-2d17-4052-80c9-01c2f5615495.png?resizew=287)
(1)求椭圆
的标准方程;
(2)设
是经过右焦点
的任一弦(不经过点
),直线
与直线
:
相交于点
,记
,
,
的斜率分别为
,
,
,求证:
,
,
成等差数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480f004c98a0df86a35a48bc973f0472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
![](https://img.xkw.com/dksih/QBM/2021/3/14/2677913573007360/2790324074610688/STEM/bdcb387c-2d17-4052-80c9-01c2f5615495.png?resizew=287)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf434334b09cc0fdd4e86e84e6ceb00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf434334b09cc0fdd4e86e84e6ceb00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
您最近一年使用:0次
2021-08-20更新
|
821次组卷
|
5卷引用:江苏省泰州市泰兴市黄桥中学2020-2021学年高三上学期第三次月考数学试题
江苏省泰州市泰兴市黄桥中学2020-2021学年高三上学期第三次月考数学试题贵州省兴义市第八中学2024届高三上学期第三次月考数学考试题(已下线)第44讲 解析几何中的极点极线问题-2022年新高考数学二轮专题突破精练江西省安义中学等六校2021-2022学年高二上学期期末联考数学(理)试题江西省赣州市定南中学2021-2022学年高二5月考数学(理)试题
名校
5 . 已知函数
.
(1)求曲线y=f(x)在点
处的切线方程;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7cb699d45226818c516d5fca0df8271.png)
(1)求曲线y=f(x)在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c6b6a11760d0724b0b60e55970e229.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eb1d916a4f922b2f5ca8f5ad90687c5.png)
您最近一年使用:0次
2021-12-17更新
|
440次组卷
|
5卷引用:2020届贵州省铜仁第一中学高三上学期第二次模拟数学(文)试题
2020届贵州省铜仁第一中学高三上学期第二次模拟数学(文)试题2019年贵州省铜仁市第一中学高三上学期第二次模拟考试数学试题(文科)湖北省枣阳市高级中学2018届高三上学期10月月考数学(文)试题陕西省渭南市蒲城县2021-2022学年高三上学期期中理科数学试题(已下线)高二数学下学期期中精选50题(压轴版)2021-2022学年高二数学下学期考试满分全攻略(人教A版2019选修第二册+第三册)
名校
6 . 已知函数f(x)=
lnx﹣1(m∈R)的两个零点为x1,x2(x1<x2).
(1)求实数m的取值范围;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc0cabb02898d220dc0a56cc5443bbfb.png)
(1)求实数m的取值范围;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8ffbcca657f675b329dcfee932da74.png)
您最近一年使用:0次
2021-04-03更新
|
751次组卷
|
5卷引用:【全国百强校】贵州省遵义航天高级中学2018届高三上学期第四次模拟考试数学(理)试题
【全国百强校】贵州省遵义航天高级中学2018届高三上学期第四次模拟考试数学(理)试题2017届广西桂林市、崇左市、百色市高三下学期第一次联合模拟(一模)考试理数试卷 2020届吉林省白城四中高三网上模拟考理科数学试题(已下线)黄金卷13 【赢在高考·黄金20卷】备战2021年高考数学全真模拟卷(广东专用)(已下线)专题2.16 导数-不等式的证明-2021年高考数学解答题挑战满分专项训练(新高考地区专用)
名校
解题方法
7 . 已知函数
,
是
的导函数.
(1)求
的极值;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cae9174bb27aac8686e477710499639b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f90560052fe43871fd3d594c771723c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d05abdeca9b324ed7e419b9140e8e92.png)
您最近一年使用:0次
2020-12-19更新
|
467次组卷
|
4卷引用:河南省2020届高三6月大联考数学文科试题
名校
8 . 对于函数
,若
,则称
为
的“不动点”,若
,则称
为
的“稳定点”,函数
的“不动点”和“稳定点”的集合分别记为
和
,即
,
,那么,
(1)求函数
的“不动点”和“稳定点”;
(2)求证:
;
(3)若
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f66a2b3d90f0d935d6c8ebaf675349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50eeb6825be5713c9d20584b74ebbd31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](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/0b164ca7a43db8ed2958a9a9b5a21369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abc439157cfc393ae61ef2eb94de1d2.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f236af85e7313b33d2dcfbb98be4b314.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cfbcb3096b081cbf61de09879dc42ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d02e5de0c92487382f4b98376e9740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-11-22更新
|
932次组卷
|
4卷引用:江苏省无锡市江阴高级中学2020-2021学年高一上学期10月学情检测数学试题
江苏省无锡市江阴高级中学2020-2021学年高一上学期10月学情检测数学试题贵州省遵义航天高级中学2021-2022学年高一上学期第三次月考数学试题(已下线)第01讲 函数的概念-【帮课堂】2021-2022学年高一数学同步精品讲义(人教A版2019必修第一册)(已下线)专题06 函数的概念及其表示压轴题-【常考压轴题】
解题方法
9 . 已知函数
.
(1)若
在
上是单调函数,求a的取值范围;
(2)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b0b4fce1edf5fff5e17d6d8b5fb8aed.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b6bec0e5c57dc0c97d2581012d2c55.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87f6ab8f310c2a608efd36a46150e6f5.png)
您最近一年使用:0次
2020-12-13更新
|
293次组卷
|
2卷引用:贵州省黔东南州黎平县黎平三中2019-2020学年高二下学期期末考试数学(理)试题
解题方法
10 . 已知圆
:
,圆
:
,动圆
与圆
外切且与圆
内切.
(1)求圆心
的轨迹方程;
(2)设
的轨迹为曲线C,经过
且斜率存在的动直线与曲线
相交于
、
两点,
关于
轴的对称点为
,求证:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfb84f31108bf596ba63e9fa510b293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8644d2fa86c82386e1d234f59e54ca90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(1)求圆心
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
您最近一年使用:0次