excuse me,may i borrow your pen?
yes,here you are
excuse me,do you have rubber
yes,i do
how long can i keep them?
you must return them when you finish writing
thank you
you are welcome
excuse me,may i borrow your pen?
yes,here you are
excuse me,do you have rubber
yes,i do
how long can i keep them?
you must return them when you finish writing
thank you
you are welcome
最新问答: 10条三国歇后语 氧化镁 氧化铝反应 (高一数学)设函数f(x)=ax+bx+1(a,b是实数)满足: 有一种手电筒 灯光射出来是一条线 请问这是个什么灯 已知函数f(x)=|x-a|,g(x)=x2+2ax+1(a为正常数),且函数f(x)与g(x)的图象在y轴上的截距相等 Danny has got some new storybook ( )the books are on the she ( )didn't you come to meer us 汽车里的 Brake Air 英语翻译如题、 一立方千米等于多少立方米 解方程左右两边什么的未知数的什么叫做方程的解. 为什么人们会说三百六十行呢,有什么意义 大圆直径是小圆直径的三倍,圆边贴在一起,小圆绕着大圆滚动,滚多少圈后返回起点? 完整的鹅卵石能形成化石吗? 1m等于多少um k(4x-2x2) 0 难忘的人英语作文 求救:mathematica解一个微分方程组并画图 【单选题】以下程序的运行结果是__________.A 如图所示,矩形ABCD的周长为20厘米,两条对角线相交于点O,过点O作AC的垂线EF,分别交AD、BC于E、F点,连接C