【简答题】由数字1,2,3,4,5组成没有重复数字且4与5不相邻的五位数,这种五位数的个数是_________.
【单选题】听力原文:W: My car wouldn't start in the afternoon. And it stopped many times on the way. M: How old is your battery? W: It's quite new. I changed it three weeks ago. M: Then would you leave your car and ...
B.
It stopped on the way for many days.
【判断题】在绘制机械图样时粗实线一般用来表达可见轮廓线。
【单选题】481 品牌最基本的含义是品牌代表着特定( )
【简答题】由数字0,1,2,3,4,5组成没有重复数字的六位数,其中个位数字小于十位数字的个数有______个.
【单选题】变动制造费用是( )与单位产品变动制造费用的乘积。
【简答题】由数字1,2,3,4,5所组成的没有重复数字的四位数中,4和5相邻的偶数共有 个.
【简答题】由1,2,3,4,5组成没有重复数字且2与不5相邻的五位数的个数是______.
【判断题】在绘制机械图样时粗实线一般用来表达可见轮廓线、可见过渡线。