73,64,53,42,31,( 20)( 9)
73 -64 = 9
64- 53 =11
53 - 42 = 11
42-31 = 11
31-11 = 20
20-11 = 9
猜你喜欢
- 1小强前几次数学平均成绩是84分,这次要考100分,才能使平均成绩达到86分.这一次是第( )次考试. A.7 B.8 C.9 D.10
- 2若关于x的分式方程:a/x+1 - 2a-x-1/x的2次方-x =0 无解,求a的值
- 3英语翻译
- 4All the world's a stage,and all the men and women merely players.
- 5某养殖场养鸡鸭共360只.其中鸡是鸭的三分之二.作养殖场养鸡鸭各多少只.不用方程.
- 6我会一直支持你.用英语怎么说,请用美国口语说,口语化一点,
- 7There you are.怎样翻译?
- 8完形填空 It appeared in June ,1997 .The bool was a great success .And the film came
- 9集合{-1,2}代表这个集合只有-1,2两个元素,还是-1~2范围内的数
- 10形容杜鹃花美的成语