你能帮帮他们吗
精彩回答
I don’t know ______ he will come tomorrow. ______ he comes , I’ll tell you.
1年前
On May 29, 1973, Thomas Bradley, a black man, was elected mayor of Los Angeles.
1年前
There were 247 ________ (投票) in favour of the plan and 152 against.
1年前
证明:函数f(x)=(根号下1+x的平方)-x在R上是单调减函数.用导数法和定义法分别证明
1年前
3个棱长都是8厘米的正方体,拼成一个长方体,这个长方体的表面积是多少平方厘米?
1年前