猜你喜欢
- 1满足方程组3x+5y=k+1,2x+3y=k的x、y值之和为2,k=?
- 2计算(要写出计算过程):1x2x3+2x3x4+3x4x5+…+7x8x9
- 3醉卧沙场君莫笑,古来征战几人回?”人“指谁?
- 4here,your,bring ,homework连词成句、
- 5初中英语:Jerry found it __ difficult to communicate with other when he first come to US
- 6一辆客车1小时行40千米.照这样的速度,行驶270千米需要多少小时?
- 7解方程.2/7x=1/2×3/14 (2-3/4)x=4/5 x÷1/2=4/9×1/4
- 8解方程 (2-x):5=3/20
- 9空气是不良导体,但在一定情况下也会导电.
- 10真分数的倒数大于1.是对还是错