简介:1.在一根长木棍上有两种刻度线,第一种刻度线将木棍分成10等份,第二种刻度线将木棍分成优等份,如果沿每条刻度线将木棍锯断,木棍总共被锯成20段.求m的值.
简介:__\名次第1名第B名平乙均\沪之飞7运会8运会7运会8运会7运会(1一8名)8运会(1一8名)100米10.2410.2210.4610.4510.3110.31200米20.9220.5521.印21.2521.2520.87400米45.8545.4647.4846.9946.8146.40800米l:49.27l:49.352:04.00l:55.38l:52.17l:50.921500米3:48.683:36.543:50.833:40.383:49.823:38.375自X)米13:32.4613:25.1413:46.8713:58.8413:39.3213:45,44l0(兀旧米28:40.8128:17.7129:43.9328:43.7328:59.3028:27.99马拉松2:11:102:oo:182:16:462:15:582:14:652:14:013(X刃米障碍8:24.878:10.468:48.548:42.058:38.108:32.8520公里竞走l:19:431:20:46l:22:16l:25:46l:20:58l:23:4050公里竟走3:49:173...