1条
任意2点之间只有一条线段.
猜你喜欢
- 1求斜边长17厘米,一条直角边长15厘米的直角三角形的面积...有关勾股的
- 2新二Lesson 15课中:I felt very nervous when I went into his office.
- 31甲工程队每工作6天休息1天,乙工程队每工作5天休息2天.一件工程,甲队单独做需90天,乙队单独做需75天.
- 4i had a visit from mary yesterday.
- 5急 1、I know a good store.(变为一般疑问句) 2.Will they ride their bikes(变成陈述句)
- 6听了报告,受到了教育.修改病句
- 7自然地理环境各要素之间的关系?
- 8排放到空气中的有害气体是( )( )和( )
- 9what have you got to do.(写出问句)
- 10100道数学题计算(二元一次方程组的)