2022年三年级植树问题全 .pdf

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1、vip 会员免费植树问题（一）在一定长度的线路上，等距离地安排若干个点植树，植树的棵数、株距（相邻两棵树之间的距离）与线路的总长之间存在某种数量关系，研究这种数量关系的问题通常被称为植树问题。植树问题一般分为线段上的植树问题和环形线路上的植树问题。1线段上的植树问题分以下三种情形讨论：（1）如果植树线路的两端都要植树，那么，植树的棵数 =线路和全长株距+1 线路的全长 =株距（植树的棵数-1）株距 =线路的全长（植树的棵数-1）（2）如果植树线路的一端要植树，另一端不要植树，那么，植树的棵数 =线路和全长株距线路的全长 =株距植树的棵数株距 =线路的全长植树的棵数（3）植树路线两端都不要种树植

2、树的棵数 =线路和全长株距-1 线路的全长 =株距（植树的棵数+1）株距 =线路的全长（植树的棵数+1）2环形线路上的植树问题，线路的全长、植树的棵树、株距之间的数量关系是：植树的棵数 =线路和全长株距线路的全长 =株距植树的棵数株距 =线路的全长植树的棵数从以上数量叛乱中容易看出：植树的棵树，株距与线路的全长三个量中，只要知道其中的两个量，就能求出第三个量。例1在一条路的一边种树，从头到尾一共种了45 棵，相邻两棵树之间相距5 米，这条路长多少米？例2在一条长42 米的街道两边，每隔6 米插一面彩旗（两端不插），一共需要插多少面彩旗？vip 会员免费例3在一个湖泊周围筑成周长是3060 米的

3、大堤，堤上每隔6 米栽柳树1 棵，然后在相邻的两棵柳树之间栽桃树 2 棵，大堤上栽柳树和桃树各多少棵？例4把一根木头锯成4 段需要 6 分，如果要锯成13 段，需要多少分？例5小平和小亮同住在一幢大楼里，小平住五楼，小亮住四楼，小平每天回家要走80 级台阶，小亮回家要走多少级台阶？植树问题 2 文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9

4、I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4

5、Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9

6、I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4

7、Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9

8、I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4

9、Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5vip 会员免费小军家住在 5 楼，每上 1 层楼梯要 1 分钟

10、。他从 1 楼走到 5 楼要用几分钟呢？如果你的答案是 5 分钟就错了，正确的答案应该是 4 分钟，为什么？这就是我们这一讲所要解决的问题间隔、分段问题，具体来说包括有楼梯问题、植树问题等等。典型例题例1 把 1 根木头锯断，要2 分钟。把这根木头锯成4 段，要几分钟？分析这样想：把 1 根木头锯断，也就是锯1 次要用 2 分钟。而把这根木头锯成4 段，需要锯几次？只要锯 3 次，也就是需要 3 个 2 分钟。解2（41）=6（分）答：锯成4 段，需要6 分钟。例2 某人到一座高层楼的8 楼去办事，不巧停电，电梯停开。他从1 楼走到 4 楼用了 48 秒。用同样的速度走到 8 楼，还要多长时间

11、？分析可以先求出上 1 层楼梯要多少秒，从图中知道，48 秒上了 3 层楼梯，上 1 层楼梯用的时间是48（41）=16（秒）。再求出从 4 楼到 8 楼用的时间，从图中也可以知道，要上4 层楼梯，也就是 4 个 16 秒。解48（41）=16（秒）16（84）=64（秒）1 2 3 4 5 6 7 8 48秒文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3

12、P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码

13、:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3

14、P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码

15、:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3

16、P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码

17、:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5vip 会员免费答：还要64 秒。例3 时钟 4

18、 点钟敲 4 下，用 12 秒敲完。那么6 点钟敲 6 下，几秒钟敲完？分析时钟敲下，经过了个时间间隔，每个时间间隔是（）（秒）。解例同学们上体育课，有个男生排成一排，相临两个男生相隔米。问这排男生排列的长度有多少米？例有一条路长米。在路的一侧从头到尾每隔米栽一棵树。共栽多少棵树？例一个圆形的花坛，周长是米。每隔米种芍药花，每相临两棵芍药花之间种两棵月季花。可以栽多少棵芍药花？多少棵月季花？小结解上楼梯问题就是考虑有几个间隔（或几次），解植树问题就是考第 1 下第下第下第下第下第下秒文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5

19、 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6

20、N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5

21、 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6

22、N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5

23、 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6

24、N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5

25、 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5vip 会员免费虑有几段。一、锯木头的时间、排队伍的长度、时钟敲的时间等，实际上都是上楼梯问题，就是台阶总数=每层楼梯的台阶数（所达到的层数起点的层数）。二、解植树问题就要弄清有几段。如：100 米的长度，每10 米载一棵树，就分成10 段。如果排成一排，栽的棵树=段数1，即 100 101=11（棵）。如果围城圆形，栽的棵树=段数，即 100 10=10（棵）。练习与思考1一条路长100 米，在这条路的一旁从头到尾每隔5 米插 1 面彩旗，一共要插多少面彩旗？2在一

26、条长75 米的长廊一边摆花盆，起点和终点都摆，一共摆了26 盆。相邻两盆花之间的距离相等，相邻两盆花之间相距多远？3在一条马路的两侧种树，每隔10 米种一棵（两端都不种），这条马路全长240 米，一共需种多少棵树？4在一条道路的两旁栽树，一共栽了32 棵，每隔8 米栽一棵（两端各栽一棵），这条路长多少米？5在一个鱼塘周围筑成周长是1200 米的土堤，堤上每隔8 米栽一棵杨树，然后要相邻两棵杨树中间栽一棵松树。土堤上栽杨树和松树各多少棵？文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5

27、文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4

28、M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5

29、文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4

30、M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5

31、文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4

32、M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5

33、文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5vip 会员免费6有 4 根木料，每根都锯成6 段，每锯开一处需付锯板费2 元，全部锯完需付锯板费多少钱？7要把一根木头锯成5 小段，每锯一小段要用15 分。李叔叔从上午8 时 10 分开始锯，中间不休息，锯完时是几时几分？8小红家所在的那座楼房，每上一层楼要走21 个台阶，到小红空要走126 个台阶，小红家住几楼？9一个人到一幢十层大楼的第八层办事，不巧停电，电梯停开。如果这个人从第一层走到第四层要48 秒，那么，他以同样的速度从第四层走到第八层，需要多少秒？10在一条路的一边每隔8 米放一盆花，连两端在内共放了

34、16 盆。现在拿走花盆，种植小松树，连两端在内共种了7 棵，相邻两棵小松树相距多远？文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 H

35、B4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4

36、Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 H

37、B4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4

38、Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 H

39、B4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5文档编码:CZ1Y1T4Q8L5 HB4M2T3P3G5 ZA9I7E6N4Z5