如果日历上爸爸的生日的那天上、下、左、右四个日期的和为96,那么爸爸的生日是_________日.
24日
由题可得:
简述幼儿动作发展与规律。
Assume that a,b,c,d are integers,and four equations (a-2b)x=1,(b-3c)y=1,(c-4d)z=1,w+100=d have always solutions x,y,z,w of positive numbers respectively,then the minimum of a is ______.
(英汉词典:to assume假设;integer整数;equation方程;solutions (方程的)解;positive正的;respectively分别地;minimum最小值)!