现在出院回家别打120了

弓卿桂5097某人下午6点多钟外出,手表上分针、时针夹角恰好是120度,下午7点前回家时发现两针夹角仍为120度,请问他外出多长时间?请列出方程并计算过程! -
蔺芬念17696298761 ______[答案] 外出45分钟

弓卿桂5097...An accident1 四个孩子刚出校门回家2一卡车经过车速较快掉下几个西瓜3一骑车人倒下身边有血(blood)4孩子们有的报警有的打120有的照看伤者5他们想... -
蔺芬念17696298761 ______[答案] Last Thursday afternoon, four students were on their way back home. 上周四下午,四个学生正在他们放学回家的路上. Suddenly they saw a truck coming round the corner at a high speed and some watermel...