真题
1 . 某地街道呈现东—西、南—北向的网格状,相邻街距都为1.两街道相交的点称为格点.若以互相垂直的两条街道为轴建立直角坐标系,现有下述格点
,
,
,
,
,
为报刊零售点.请确定一个格点(除零售点外)__________ 为发行站,使6个零售点沿街道到发行站之间路程的和最短.
![](https://img.xkw.com/dksih/QBM/2010/3/5/1569628003540992/1569628141133824/STEM/b4d909407b65452eb5f4c1c0f051ec0b.png?resizew=46)
![](https://img.xkw.com/dksih/QBM/2010/3/5/1569628003540992/1569628141133824/STEM/24b3ec9463d54406a67737ddc37c74b0.png?resizew=32)
![](https://img.xkw.com/dksih/QBM/2010/3/5/1569628003540992/1569628141133824/STEM/12224e7b62a84c2a8464def38537ba31.png?resizew=34)
![](https://img.xkw.com/dksih/QBM/2010/3/5/1569628003540992/1569628141133824/STEM/0fce6bc88ab6407cb6fef7f948c6d1f2.png?resizew=44)
![](https://img.xkw.com/dksih/QBM/2010/3/5/1569628003540992/1569628141133824/STEM/a9b09acd7168467894b2a39367973822.png?resizew=34)
![](https://img.xkw.com/dksih/QBM/2010/3/5/1569628003540992/1569628141133824/STEM/e70ddb93ac1e4151a09e5449641ee55d.png?resizew=36)
您最近一年使用:0次
真题
2 . 设
是
的两个非空子集,如果存在一个从
到
的函数
满足:![](https://img.xkw.com/dksih/QBM/2013/7/17/1571285821030400/1571285826519040/STEM/7f3e28abc70a4734af301454100b12ba.png)
;
对任意
,当
时,恒有
,那么称这两个集合“保序同构”,以下集合对不是“保序同构”的是( )
![](https://img.xkw.com/dksih/QBM/2013/7/17/1571285821030400/1571285826519040/STEM/a791ccb8c8d34a5ab146d152576e48ea.png)
![](https://img.xkw.com/dksih/QBM/2013/7/17/1571285821030400/1571285826519040/STEM/5b7071bdcb994c96a4eb1a452e24e8b5.png)
![](https://img.xkw.com/dksih/QBM/2013/7/17/1571285821030400/1571285826519040/STEM/f2a0f6f6a2074019acd4fac18a2d76d8.png)
![](https://img.xkw.com/dksih/QBM/2013/7/17/1571285821030400/1571285826519040/STEM/335bb80c9348445287bfbcb28e1abcc9.png)
![](https://img.xkw.com/dksih/QBM/2013/7/17/1571285821030400/1571285826519040/STEM/6533dca075fc43f98575acef2bf1e3af.png)
![](https://img.xkw.com/dksih/QBM/2013/7/17/1571285821030400/1571285826519040/STEM/7f3e28abc70a4734af301454100b12ba.png)
![](https://img.xkw.com/dksih/QBM/2013/7/17/1571285821030400/1571285826519040/STEM/d948389a3a744bdb85ed570eddb3f685.png)
![](https://img.xkw.com/dksih/QBM/2013/7/17/1571285821030400/1571285826519040/STEM/7f4ab84b789a4fadbba76322633e95fb.png)
![](https://img.xkw.com/dksih/QBM/2013/7/17/1571285821030400/1571285826519040/STEM/0d14d44f2e3441f8ad0f1dc8f8541c49.png)
![](https://img.xkw.com/dksih/QBM/2013/7/17/1571285821030400/1571285826519040/STEM/d546634bd97c4442976f91b31ead4224.png)
![](https://img.xkw.com/dksih/QBM/2013/7/17/1571285821030400/1571285826519040/STEM/ff83a4e625c74e878c29a1654438a3c1.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
真题
名校
3 . 设
,
是二次函数,若
的值域是
,则
的值域是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876640996d1dd49c52d40e2a3de0344d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30e7fd1622316cd0f50b193a3c573e75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70fcba4b3d6737217487b9907066de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2010-08-14更新
|
2179次组卷
|
11卷引用:2007年普通高等学校招生全国统一考试理科数学卷(浙江)
2007年普通高等学校招生全国统一考试理科数学卷(浙江)(已下线)2014届人教版高考数学文科二轮专题复习提分训练8练习卷(已下线)2015届浙江省温州市十校联合体高三上学期期中联考理科数学试卷2015-2016学年四川省德阳香港马会五中高一上学期12月月考数学卷2015-2016学年东北育才学校高二下段考二试数学文试卷(已下线)2019年一轮复习讲练测【新课标版文】专题2.2 函数的定义域、值域式(测)江苏省南通市如皋中学2019-2020学年度高一上学期第一次阶段考试数学试题(已下线)【新东方】杭州新东方高一数学试卷2242007年普通高等学校招生考试数学(理)试题(浙江卷)(已下线)【新东方】高中数学20210527-009【2021】【高二下】(已下线)专题2-1 函数性质1:值域12类归纳-3