你能帮帮他们吗
at present more and more people like to travel during their
1年前
在矩形ABCD中,AB=1,AD=根号3 AF平分角DAB.过c点作cE垂直于BD于E.延长AF.Ec交于点H.结论∠F
1年前
设f(x)是定义在R上的奇函数,f(1)=1,当x>0时,有f(x)>xf′(x)恒成立,则不等式f(x)>x的解集是(
1年前
My mother used to be ______ the basketball team
1年前
谜语:what belong only to you ,but is used more by other than y
1年前