英译汉：what kind of grades did you make in college

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• 英译汉：what kind of grades did you make in college
• 英译汉：what kind of grades did you make in college
• 车间需要加工一批零件如果由师傅单独做要6天完成……这道题的解题思路是什么一定要有解题思路!车间需要加工一批零件,如果由师傅单独做要6天完成,如果交给徒弟单独做要9天完成.师傅先做了若干天后,再交给徒弟完成剩下的工作,他们一共做了8天.师傅先做了几天?（提示：可以将这批零件看做“一份”或“十八份”要有解题思路不然我写出来也没意思
• 加工一批零件,师傅单独做14天完成.若师徒2人合做10天,剩下的由徒弟一人做,需几天完成?注意，是师徒2人做了十天后，剩下的徒弟来做，1楼的是徒弟一人独自做完要35天，我算出来的是十天正好做完，再次补充：师傅为14分之1，14分之1乘以10就求出师傅10天的量，为7分之5，所以，徒弟在十天内做的量为7分之2,7分之2除以10就是徒弟的工作效率，所以，用单位1总量减去师徒10天的工作总量再除以徒弟的工作效率，又无法验算。