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1、由考生在框内填自己考场座位号末尾两位数2010年 无 为 县 初 中 毕 业 学 业 模 拟 考 试数学本卷共 8 大题，计23 小题，满分150 分,考试时间 120 分钟.题号一二三四五六七八总分得分一、选择题（本题共10 小题，每小题4 分，满分40 分）.每小题都给出代号为A、B、C、D 的四个选项，其中只有一个是正确的，请把正确选项的代号写在题后的括号内.每一小题，选对得4 分，不选、选错或选出的代号超过一个的(不论是否写在括号内)一律得 0 分.1.13的结果是【】A.-3 B.31C.3 D.312.函数xy231x中自变量x 的取值范围是【】Ax3 Bx2 Cx2 且 x3 D
2、x2 且 x3 3.不等式组2131xx的解集是【】A2xB1xC12xD无解4在下列各电视台标图案中，是轴对称图形的是【】5.小兰在一天晚上帮妈妈洗三个只有颜色不同的有盖茶杯，这时突然停电了，小明只好将茶杯和杯盖随机搭配在一起，那么三个茶杯颜色全部搭配正确的概率是【】得分评卷人A B C D A31B61C91D2716.长方体的主视图与左视图如图所示（单位：cm），则其俯视图的面积是【】A12cm2B8cm2C6cm2D4cm27.如图，PA、PB 分别切 O 于点 A、B，点 E 是 O 上一点，且AEB=60，则 P 的度数为【】A120B.90 C.60 D.75 8.刘谦的魔术表演
3、风靡全国，小明也学起了刘谦发明了一个魔术盒，当任意实数对),(ba进入其中时，会得到一个新的实数：12ba，例如：把（3，-2）放入其中，就会得到32+（-2）-1=6.现将实数对)2,(mm放入其中，得到实数2，则m的值是【】A3 B.-1 C.-3 或 1 D.3 或-1 9一副三角板如图叠放在一起，则图中的度数为【】A60B75C65D 5510 2010 年 4月 14 日 7 时 49 分，青海省玉树县发生了7.1 级地震后，武警某部官兵第一时间接到上级命令，立即乘车前往玉树地震灾区抗震救灾，前进一段路程后，由于道路受阻，汽车无法通行，部队通过短暂休整后决定步行前往，若部队离开驻地的
4、时间为t（时），离开驻地的距离为s（千米），则能反映s 与 t 之间函数关系的大致图像是【】二、填空题（本题共4小题，每小题5 分，满分20 分）11分解因式:2382mnm=.122010 年 3 月 5 日中国国家发展和改革委员会表示，2010 年将比 2009 年人民币7 161.4亿元的农业支出预算增长14%.请用科学记数法表示出2010 年中国农业支出预算约为_元.(保留三位有效数字）13.如图是根据我县教育局网站上公布的某初中为玉树地震灾区捐款的情况而制作的统计图，A C D B P E A B 60O 第 7 题图第 6 题图左视图主视图2342第 9 题图第 13 题图得分评卷
5、人文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:
6、CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10
7、J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C
8、2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I
9、4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O
10、4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T
11、7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9文档编码:CQ2I10J1A10C2 HM4I4I1J4O4 ZM2T7E2H1S9已知该校在校学生有1000 人，请根据统计图计算该校共捐款元14如图，菱形OABC 中，A=120，OA=2，将菱形OABC绕点 O 顺时针旋转90 到 OA B C
12、，则图中由弧BB，BA，弧 A C，CB 围成的阴影部分的面积是_三、（本题共2 小题，每小题8 分，满分16 分）15.解方程：xxx3231.【解】16.某地震救援队探测出某建筑物废墟下方点C 处有生命迹象，已知废墟一侧地面上两探测点 A、B 相距 3 米，探测线与地面的夹角分别是30 和 60 （如图），试确定生命所在点C 的深度（结果精确到0.1 米，参考数据：21.41,31.73）【解】第 14 题图第 16 题图得分评卷人文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R
13、10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2
14、R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C
15、2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3
16、C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ
17、3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 Z
18、Z3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4
19、ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6四、（本题共2 小题，每小题8 分，满分16 分）17.如图是某影视城的圆弧形门，黄红同学到影视城玩，很想知道这扇门的相关数据，于是她从景点管理人员处打听到：这个圆弧形门所在的圆与水平地面BD 是相切的，AB=CD=20cm，BD=
20、200cm，且 AB，CD 与水平地面都是垂直的根据以上数据，请你帮助黄红同学计算出这个圆弧形门的最高点离地面的高度是多少？【解】18.如图，将正方体沿粗线剪开.(1)以所给的正方形ABCD 为基础,画出它的展开图;【解】(2)若正方体的棱长为2cm，在正方体的顶点A 处有一只小虫沿着正方体的表面爬行到顶点 E 处，求小虫爬行的最短距离.【解】A B C D E 第 18 题图A B C D 得分评卷人D A C B 第 17 题图文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10
21、S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R1
22、0S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R
23、10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2
24、R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C
25、2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3
26、C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ
27、3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6五、（本题共2 小题，每小题10 分，满分20 分）19.每年的 310 月份为一年中的黄金旅游月份.某水果种植大户，为了吸引更多的顾客，组织了观光采摘游活动每一位来采摘水果的顾客都有一次抽奖机会：在一只不透明的盒子里有ABCD，四张外
28、形完全相同的卡片，抽奖时先随机抽出一张卡片，再从盒子中剩下的3 张中随机抽取第二张请利用树状图（或列表）的方法，表示前后两次抽得的卡片所有可能的情况；如果抽得的两张卡片是同一种水果图片就可获得奖励，那么得到奖励的概率是多少？A B C D【解】20.如图，在ABCD 中，AEBC 于 E，AFCD 于 F，BD 与 AE、AF 分别相交于G、H求证：ABE ADF；【证】若 AG=AH，求证：四边形ABCD 是菱形【证】A D C B G E H F 第 20题图得分评卷人文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10
29、HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10
30、 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K1
31、0 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K
32、10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2
33、K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y
34、2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5
35、Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6六、（本题满分12 分）21.西瓜经营户以2 元/千克的价格购进一批小型西瓜，以 3元/千克的价格出售,每天可售出 200 千克.为了促销,该经营户决定降价销售.经调查发现,这种小型西瓜每降价0
36、.1元/千克，每天可多售出40 千克.另外，每天的房租等固定成本共24 元.该经营户要想每天盈利200 元，应将每千克小型西瓜的售价降低多少元?【解】得分评卷人文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:
37、CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码
38、:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编
39、码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档
40、编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文
41、档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6
42、文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L
43、6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6七、（本题满分12 分）22.已知 MAN，AC 平分 MAN.在图 1 中，若 MAN=120，ABC=ADC=90，求证：AB+AD=AC；【证】在图 2 中，若 MAN=120，ABC+ADC=180，则中的结论是否仍然成立？若成立，请给出证明；若不成立，请说明理由；【解】在图 3 中：若 MAN=60，ABC+ADC=180，则 AB+AD=AC，请填空并给出证明；【证】若 MAN=（0 180），ABC+ADC=180，则 AB+AD=AC（用含A M N B D C C A B B N N M
44、M D D A C 第 22 题图 1 第 22 题图 2 第 22题图 3 得分评卷人文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4
45、L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S
46、4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10
47、S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R1
48、0S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R
49、10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2
50、R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C2R10S4L6文档编码:CM1K4C5Y2K10 HE10O9H3D6G4 ZZ3C