1.单选题- (共2题)
A.了解我市居民每户日平均食品消费支出,采用普查方式 |
B.了解某一天离开温州市的人口流量,采用抽样调查 |
C.了解全班同学本周末参加社区活动时间,采用抽样调查 |
D.了解一批炮弹的杀伤半径,采用普查方式 |
2.选择题- (共7题)
Do you like Home with Kids(《家有儿女》)?It is very popular(受欢迎的)now. Many children like it. There are five people in the family. There is a sister and two brothers in their family.
Their father is a film director(导演). He doesn’t often do housework. He is always happy. Their mother doesn’t go to work. She stays at home and does housework. And she loves her children very much, but she gets angry easily. Xiaoxue is their daughter. She is a good student. Big brother, Liu Xing, can always make others happy. He likes ball games. Little brother, Xiaoyu, is helpful. He likes playing computer games. This is a happy family.
3.填空题- (共1题)
4.解答题- (共3题)



【小题1】(1)求s与

【小题2】(2)求与图③相对应的P点的运动路径;及P点出发多少秒首次到达点B;
【小题3】(3)写出当3≤s≤8时,y与s之间的函数关系式,并在图③中补全函数图象.

【小题1】(1)根据上面多面体模型,完成表格中的空格:
多面体 | 顶点数(V) | 面数(F) | 棱数(E) |
四面体 | 4 | 4 | 6 |
长方体 | 8 | 6 | 12 |
正八面体 | 6 | 8 | 12 |
正十二面体 | | | |
【小题2】(2)你发现顶点数(V)、面数(F)、棱数(E)之间存在的关系式是
【小题3】(3)一个多面体的面数比顶点数大8,且有30条棱,则这个多面体的面数是
【小题4】(4)某个玻璃鉓品的外形是简单多面体,它的外表面是由三角形和八边形两种多边形拼接而成,且有24个顶点,每个顶点处都有3条棱,设该多面体外表三角形的个数为x个,八边形的个数为y个,x+y=
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【1】题量占比
单选题:(2道)
选择题:(7道)
填空题:(1道)
解答题:(3道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:2
7星难题:0
8星难题:3
9星难题:1