如图①,正方形
的边长为
,动点
从点
出发,在正方形的边上沿
运动,设运动的时间为
,点
移动的路程为
,
与
的函数图象如图②,请回答下列问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/28/24c4e5ff-505d-4182-a4af-b1c6103b3a4d.png?resizew=327)
(1)点
在
上运动的时间为______
,在
上运动的速度为______
;
(2)①设
的面积为
,下列表示
的面积
与时间
之间的函数图象是______;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/14/7bbb6951-939f-47e0-a635-4fc66878f1b7.png?resizew=414)
②求当点
在
上运动时,
与
之间的函数解析式.
写出解答过程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd6f4250ca6b1b9bce234a01f00d44d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4853b4705dee3de86e18a346ee3ae853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ca07a30fd25907fbb2f54e0d639b512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afbb3682299828af8253d981427cd660.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/28/24c4e5ff-505d-4182-a4af-b1c6103b3a4d.png?resizew=327)
(1)点
![](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/c8c1468cf3bc2bbc5bee776b882f42eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1dce4a03cf2c9a68b2399d4339a035.png)
(2)①设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7fbd6b9f85c086ac95562fe45e8d969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eacd892f03da01942140679667792250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7fbd6b9f85c086ac95562fe45e8d969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/14/7bbb6951-939f-47e0-a635-4fc66878f1b7.png?resizew=414)
②求当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
更新时间:2022-09-27 08:42:07
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图1,长方形ABCD的边上有一个动点P.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/31b3af1a-46c8-4107-a799-a68e8c08dc9f.png?resizew=570)
(1)动点P从点A出发,以每秒1个单位长度的速度沿路线ABCD运动到点D停止,已知点P在AB边上的速度为每秒1个单位长度,在BC边上的速度为每秒2个单位长度,在CD边上的速度为每秒3个单位长度.设运动时间为xs,APD的面积为S,S与x的关系图像如图2所示.
①根据图2直接写出CD=______;
②求线段AD的长;
(2)如图3,若长方形的中心点为M(即点M到边AB,BC的距离分别是BC和AB长度的一半),动点P从点A出发,以每秒6个单位长度的速度沿路线ABC运动到点C停止.同时,动点Q从点C出发,以每秒2个单位长度的速度沿路线CBA运动到点A停止.设运动时间为ts,当点P运动到BC边上时,连接PM,QM,PQ,当
MPQ的面积为3时,求t的值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/31b3af1a-46c8-4107-a799-a68e8c08dc9f.png?resizew=570)
(1)动点P从点A出发,以每秒1个单位长度的速度沿路线ABCD运动到点D停止,已知点P在AB边上的速度为每秒1个单位长度,在BC边上的速度为每秒2个单位长度,在CD边上的速度为每秒3个单位长度.设运动时间为xs,APD的面积为S,S与x的关系图像如图2所示.
①根据图2直接写出CD=______;
②求线段AD的长;
(2)如图3,若长方形的中心点为M(即点M到边AB,BC的距离分别是BC和AB长度的一半),动点P从点A出发,以每秒6个单位长度的速度沿路线ABC运动到点C停止.同时,动点Q从点C出发,以每秒2个单位长度的速度沿路线CBA运动到点A停止.设运动时间为ts,当点P运动到BC边上时,连接PM,QM,PQ,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】如图1,在四边形
中,
,
,
,
,点
在四边形的边上,且沿着点
运动.设点
的运动路程为
,记
围成的面积为
,
,
.
与
的函数关系式,并写出
的取值范围;
(2)如图2,平面直角坐标系中已画出函数
的图象,请在同一坐标系中画出函数
的图象,并根据函数图象,写出函数
的一条性质;
(3)结合
与
的函数图象,直接写出当
时,
的取值范围.(结果保留一位小数,误差范围不超过
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8ef58be8708144272538ee427fb92c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf2b4fa8f96f287f94d46e2e6f5a612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49437f474e5805688dff21ded2d1fd7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fc9477c267b169bafbe5ccd24e7f6c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c491e6b468c0618660a2ab65d8afa526.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e660db8a28326432e63231129c0a5229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d4faa67e6b774b79184a43eb2d1d1db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)如图2,平面直角坐标系中已画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(3)结合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4646418552dc060ebda1232361a01295.png)
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解答题-问答题
|
适中
(0.65)
解题方法
【推荐3】(本题满分10分)如图①,在菱形ABCD中,∠ABC=60°,P、Q是对角线BD上的两个动点,点P从点D出发沿BD方向以2cm/s的速度向点B运动,运动终点为B;点Q从点B出发沿着BD的方向以4cm/s的速度向点D运动,运动终点为D.两点同时出发,设运动时间为x(s),以A、Q、C、P为顶点的图形面积为y(cm2),y与x的函数图像如图② 所示,根据图像回答下列问题:
(1)BD = ,a = ;
(2)当x为何值时,以A、Q、C、P为顶点的图形面积为16
cm2?
(3)在整个运动的过程中,若△AQP为直角三角形,请直接写出符合条件的所有x的值: .
(1)BD = ,a = ;
(2)当x为何值时,以A、Q、C、P为顶点的图形面积为16
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(3)在整个运动的过程中,若△AQP为直角三角形,请直接写出符合条件的所有x的值: .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/302c1741-7d57-419b-9205-7ca9c6f57743.png?resizew=359)
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解答题-计算题
|
适中
(0.65)
【推荐1】如图,在平面直角坐标系中,四边形ABCD的边AD在x轴上,点C在y轴的负半轴上,直线BC∥AD,且BC=3,OD=2,将经过A、B两点的直线l:y=﹣2x﹣10向右平移,平移后的直线与x轴交于点E,与直线BC交于点F,设AE的长为t(t≥0).
(1)四边形ABCD的面积为 ;(提示:小学已学过梯形面积计算方法)
(2)设四边形ABCD被直线l扫过的面积(阴影部分)为S,请写出S关于t的函数解析式.
(1)四边形ABCD的面积为 ;(提示:小学已学过梯形面积计算方法)
(2)设四边形ABCD被直线l扫过的面积(阴影部分)为S,请写出S关于t的函数解析式.
![](https://img.xkw.com/dksih/QBM/2019/3/16/2161699072655360/2164598341345280/STEM/68c8401ebc2f4093a35e64417bf414ab.png?resizew=319)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,二次函数
(
,
是常数)的图象与
轴交于
,
两点,与
轴交于
点.已知
,并且当
时,
.
(2)已知该二次函数的图象上有两点,它们的坐标分别是
,
,当
且
时,试比较
与
的大小,并说明理由.
(3)过
,
两点作直线,点
为该直线上一动点,过点
作
轴的平行线,分别交
轴和抛物线于点
,
,若
,试求以
,
,
,
为顶点的四边形的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e59da5115d0dafea24822245f92c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ef520a2657abdf14fa6818c380b596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
(2)已知该二次函数的图象上有两点,它们的坐标分别是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2693f047cefe8477d055076b0fb25a03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/590a7d430703d2d41a0171ff6a97dac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/419504736c4934f6e0df4114c3743944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d5b159da139b50cde0d087f462aa4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
(3)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40e40552af5fdb60c2ffd0de345cc91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】如图,在矩形
中,
,
,点
从点
出发沿
方向以
的速度向点
匀速运动,同时点
从点
出发沿
方向以
的速度向点
匀速运动,当其中一个点到达终点时,另一个点也随之停止运动.设点
,
运动的时间是
秒.过点
作
于点
,连接
,
.
(1)
___________
___________
(用含
的代数式表示).
(2)试说明:无论
为何值,四边形
总是平行四边形.
(3)连接
,
与
能垂直吗?如果能,求出相应的
值;如果不能,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bfe6362e241ce790c6c30dfdfe72f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa18c2a78c400c80a5760743f31771c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d989a128e30a701dfff5592476a76bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5631e6ec24d3d67bf4592313b6b3f4f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac2ef99db257cc1acb08e3a5e0006d49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3d566704b44ea4ef1f99c37bd46902.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/9/d2684972-74c5-45ad-b100-10feaffc690a.png?resizew=213)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf757b473eb160e42173982184ac5b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8264a8b41db66fe007da45c915832f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)试说明:无论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3328ee14012cf6c986c4b20dc7f255.png)
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,在等腰梯形
中,
,点
是线段
上的一个动点(
与
不重合),
分别是
的中点.
(1)试探索四边形
的形状,并说明理由.
(2)当点
运动到什么位置时,四边形
是菱形?并加以证明.
(3)若(2)中的菱形
是正方形,探索线段
与线段
的关系,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b0a4510512e12653871b051bce9a8ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745b792f9e1b571cb0e6a7b859e8de38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d9bb8c09e94b4b606adc064621497d.png)
(1)试探索四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1522a9c3b2466395570c2689a4055584.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1522a9c3b2466395570c2689a4055584.png)
(3)若(2)中的菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1522a9c3b2466395570c2689a4055584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2019/8/30/2280005185265664/2280047600263168/STEM/ee44d4e913e64d3bbfdb56ce86efc95c.png?resizew=158)
您最近一年使用:0次