1 . 如图,三棱柱ABC–A1B1C1中,侧面AA1C1C⊥侧面ABB1A1,AC=AA1=
AB,∠AA1C1=60°,AB⊥AA1,H为棱CC1的中点,D为BB1的中点.
(1)求证:A1D⊥平面AB1H;
(2)若AB=
,求三棱柱ABC–A1B1C1的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e051d14fd6a787387995331f5e6d026.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/8/f9b24a08-9ac1-4a51-a231-65dd968043fd.png?resizew=160)
(1)求证:A1D⊥平面AB1H;
(2)若AB=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e051d14fd6a787387995331f5e6d026.png)
您最近一年使用:0次
2018-11-22更新
|
1480次组卷
|
6卷引用:【全国百强校】甘肃省西北师范大学附属中学2018届高三冲刺诊断考试数学(文)试题
【全国百强校】甘肃省西北师范大学附属中学2018届高三冲刺诊断考试数学(文)试题广东省湛江市遂溪县第一中学2017--2018学年高二第二学期第三次月考文科数学试题(已下线)2018年11月20日 《每日一题》人教必修2-平面与平面垂直的性质(已下线)卷04-备战2020年新高考数学自学检测黄金10卷-《2020年新高考政策解读与配套资源》(已下线)专题06 立体几何初步(难点)-2020-2021学年高一数学下学期期末专项复习(北师大版2019必修第二册)陕西省西安市大联考2022-2023学年高一下学期期中数学试题
2 . 如图,在斜三棱柱
中,已知
,
,且
.
![](https://img.xkw.com/dksih/QBM/2018/7/24/1995250739593216/2020756539613184/STEM/31d98bcfc3614232943b6d36192b0037.png?resizew=187)
(Ⅰ)求证:平面
平面
;
(Ⅱ)若
,求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcfdaff6c0ebc150c81ce52a0cb95469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2e5dc81fbafbe58bff0842f7776d80a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46fe926770d2354e172dec02f5ce2efe.png)
![](https://img.xkw.com/dksih/QBM/2018/7/24/1995250739593216/2020756539613184/STEM/31d98bcfc3614232943b6d36192b0037.png?resizew=187)
(Ⅰ)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61cdaadeae37736a1e6dd93fa1fe712f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e448cf106f584695cce0ae1fdc16f9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c61e6d34503a713684bb25be96edbcd.png)
您最近一年使用:0次
2018-08-29更新
|
2117次组卷
|
4卷引用:甘肃省师大附中2019届高三上学期期中模拟文科数学试卷
甘肃省师大附中2019届高三上学期期中模拟文科数学试卷【市级联考】江西省南昌市2017-2018学年度高三第二轮复习测试卷文科数学(一)试题2019届四川省广元市高三第二次高考适应性统考数学文试题(已下线)2019届神州智达高三诊断性大联考(三)文科数学(预测卷Ⅰ)
3 . 在梯形
中(图1),
,
,
,过
、
分别作
的垂线,垂足分别为
、
,已知
,
,将梯形
沿
、
同侧折起,使得
,
,得空间几何体
(图2).
![](https://img.xkw.com/dksih/QBM/2018/4/19/1927258523508736/1930278161932288/STEM/37b8762183e44cb28b0d908bbb5bfc6a.png?resizew=308)
![](https://img.xkw.com/dksih/QBM/2018/4/19/1927258523508736/1930278161932288/STEM/cfaabaa788c7472c890317529dcb6840.png?resizew=173)
(1)证明:
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b515965c22d2950b592c096c6e3bdfd4.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/9d78abbad68bbbf12af10cd40ef4c353.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/82773737609e65dea3c5c67099f1b10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b0393ce62b24aa5f9b740d4cc6743b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e39b13d187b25461d85a3b8d10c7b678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dced11455b3e31a9090915f80a046fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/535770901287f244911b42412533d4a9.png)
![](https://img.xkw.com/dksih/QBM/2018/4/19/1927258523508736/1930278161932288/STEM/37b8762183e44cb28b0d908bbb5bfc6a.png?resizew=308)
![](https://img.xkw.com/dksih/QBM/2018/4/19/1927258523508736/1930278161932288/STEM/cfaabaa788c7472c890317529dcb6840.png?resizew=173)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c372d059202ec388960b125d4a87dc84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b565e518d475a50358fedff2f0bb8dec.png)
您最近一年使用:0次
2018-04-26更新
|
529次组卷
|
2卷引用:甘肃省张掖市2018届高三备考质量检测第三次诊断考试数学(文)试题
4 . 如图,四棱锥
的底面
是正方形,
平面
,且
,
.
![](https://img.xkw.com/dksih/QBM/2018/4/16/1925359528009728/1930343753334784/STEM/94e0d4102cb54ba88a0324f032a13f2d.png?resizew=106)
(1)证明:
平面
;
(2)设
为棱
上一点,且
,记三棱锥
的体积为
,三棱锥
的体积为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba77c22664cbf2111ee2879bf944f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a34a1a0354e836d4c88eeb7d2589283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07cf478246d00cbffc6cd4dbee1eaffb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a34a1a0354e836d4c88eeb7d2589283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf435f85883d2db2430a5b7bf41dab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710f605b1e4c24464c9e1e48a83b7a44.png)
![](https://img.xkw.com/dksih/QBM/2018/4/16/1925359528009728/1930343753334784/STEM/94e0d4102cb54ba88a0324f032a13f2d.png?resizew=106)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392ff2c5d4366dfec3039cf2638afbc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1146922ccd0d2914568ab7262c832796.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c59076e80b15755ef630fd5f40d1f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3218f4e510d1f1534088f919dbf929db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f91eebb19d2be2b300d609b68b56410d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5d56267f04247be4c67f0ffd8bff37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff7021e842471ee60e9259378dd1ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dedb9855ea83c558bf2bd831dfe5f9b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e4d3c71604dcf7ca1fda5ebf0d0b66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/409ffd540b819d254f97c494c60aa520.png)
您最近一年使用:0次
2018-04-23更新
|
250次组卷
|
5卷引用:甘肃省金昌市2021届高三第二次联考文科数学试题
甘肃省金昌市2021届高三第二次联考文科数学试题广西2018届高三下学期第二次模拟数学(文)试题(已下线)《2018艺体生文化课-百日突围系列》综合篇 专题四 多得分之-- 立体几何第一问(已下线)《2018艺体生文化课-百日突围系列》强化训练三(文)2018届湖北省十堰市高三上学期1月调研考试数学(文)试题
5 . 在多面体
中,平面
平面
为正三角形,
为
中点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/3d2b5f64-137a-4693-aaa4-a8e8b7ff6752.png?resizew=170)
(1)求证:平面
平面
;
(2)求多面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7281fb299ccf1adfb9de560fd0984edb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a65c950688c55e609dff49bce02eaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/064c8383c0492e98401c169893612214.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/3d2b5f64-137a-4693-aaa4-a8e8b7ff6752.png?resizew=170)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8f3dd6c6f43d594d10735338e6a2f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求多面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7281fb299ccf1adfb9de560fd0984edb.png)
您最近一年使用:0次
2018-04-20更新
|
774次组卷
|
4卷引用:甘肃省天水市第一中学2017-2018学年度下学期高三第二次模拟 考试 数学(文科)试题
名校
6 . 如图,在四棱锥
中,
,
,
,
.
(1)求证:
;
(2)当几何体
的体积等于
时,求四棱锥.
的侧面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd7ad7ca015c426a47fa4530c5e05fce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c313dff515240bc75d42f6687ac44cb1.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae7796dd22e21bfa6a287d817d5c139.png)
(2)当几何体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ff27eea7545bb06f9472f91290c54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d599cb4a589f90b0205f24c2e1fa021e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
![](https://img.xkw.com/dksih/QBM/2018/4/16/1925165177536512/1928061041680384/STEM/f515ffe2a34841488366876a97158e69.png?resizew=302)
您最近一年使用:0次
2018-04-20更新
|
1301次组卷
|
4卷引用:甘肃省平凉市庄浪县第一中学2020-2021学年高三上学期第四次模拟数学(文科)试题
甘肃省平凉市庄浪县第一中学2020-2021学年高三上学期第四次模拟数学(文科)试题宁夏银川一中2018届高三第二次模拟考试数学(文)试题辽宁省营口市部分重点高中2017-2018学年高二下学期期末考试数学(文)试题(已下线)专题34 空间几何体的表面积和体积-备战2022年高考数学一轮复习一网打尽之重点难点突破
7 . 如图,四棱锥
的底面
是菱形,且
,其对角线
、
交于点
,
、
是棱
、
上的中点.
![](https://img.xkw.com/dksih/QBM/2018/4/10/1921124241481728/1921941113217024/STEM/976dec639f0b4c59af2655dee54c7baa.png?resizew=214)
(1)求证:面
面
;
(2)若面
底面
,
,
,
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd7a42341edbc0b01ab0769c4c02c3e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/2018/4/10/1921124241481728/1921941113217024/STEM/976dec639f0b4c59af2655dee54c7baa.png?resizew=214)
(1)求证:面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2144415ce99ae8a61b05abf1ddc68a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)若面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d452a7b850cd3a15b23619ad39bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be41b05e11ba5eadaaed9a224b949774.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f4cefc66f60d10e246ef0f42bf9d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3026f5d37e8abb99a3cbb8eb851d38.png)
您最近一年使用:0次
2018-04-11更新
|
1063次组卷
|
3卷引用:甘肃省武威第六中学2020届高三下学期第二次诊断考试数学(文)试题
8 . 四棱台被过点
的平面截去一部分后得到如图所示的几何体,其下底面四边形
是边长为2的菱形,
,
平面
,
.
(Ⅰ)求证:
;
(Ⅱ)求点
到平面
的距离..
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e1120f005fb701c407fbfd9c1b1302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d25e8fc3dda4f8b45491514b6e22a962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5791c12595e208264669378dd499de56.png)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b8bd2dad6de37bd03e085bcd1976556.png)
(Ⅱ)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b8f65872fbe939603c6e2acee74baa.png)
![](https://img.xkw.com/dksih/QBM/2018/3/18/1904933540167680/1905563173707776/STEM/9198d5209a3749459a96ab750ed1e678.png?resizew=134)
您最近一年使用:0次
2018-03-19更新
|
386次组卷
|
2卷引用:甘肃省2018届高三第一次诊断性考试数学(文科)试题
9 . 如图所示,矩形
中,
,
平面
,
,
为
上的点,且
平面
.
![](https://img.xkw.com/dksih/QBM/2018/3/10/1898946809585664/1901453188284416/STEM/b3c35e55e2d845c682ccc4a6da70b94a.png?resizew=132)
(1)求证:
平面
;
(2)求平面
与平面
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327832ffb5a937d88a1069395a8552af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b3581f73c778ecb0931c1ab30392ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa3c61d6c19e187b4b824b6f5610cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
![](https://img.xkw.com/dksih/QBM/2018/3/10/1898946809585664/1901453188284416/STEM/b3c35e55e2d845c682ccc4a6da70b94a.png?resizew=132)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
您最近一年使用:0次
解题方法
10 . 如图,已知四棱锥
,
平面
,底面
中,
,
,且
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/2018/3/23/1908399770836992/1916037309489152/STEM/ab4c969928c0459ca3d8db2cca0ee9ec.png?resizew=157)
(1)求证:平面
平面
;
(2)问在棱
上是否存在点
,使
平面
,若存在,请求出二面角
的余弦值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1bed9e7cd7aa41d0cb0f9fc1ec5eaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edf7488ccaf26541626131bceb8f1069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/2018/3/23/1908399770836992/1916037309489152/STEM/ab4c969928c0459ca3d8db2cca0ee9ec.png?resizew=157)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13de8cbfb0b865ea5a61e7a4ff1abe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)问在棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59841953d876e61083ababe8ad616dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afc93b0a63786bc567699dfdb4014eeb.png)
您最近一年使用:0次
2018-03-07更新
|
951次组卷
|
3卷引用:甘肃省兰炼一中2018届高三下学期第二次模拟理科数学试题