1年前1个回答
一座楼房每上一层要走21几台阶,小娜住6楼到小娜家一共要走几级
1年前2个回答
1年前1个回答
你能帮帮他们吗
精彩回答
如图,等边△OAB的边长为2,点B在x轴上,点A在双曲线y=
10个月前
Don't put off till tomorrow ________ you should do today!
1年前
This coat doesn't fit him well, as he has ________ a huge body and the coat is________ small.
1年前
已知关于x,y的方程组mx+2ny=4 x-y=3 x+y=1 与 nx+(m-1)y=3 的解相同
1年前
Kunming is a beautiful city ________ flowers and green grass and trees are seen all year round.
1年前