Mary, is that girl in a red skirt our new roommate?
Yes. Let's go and say hello to_____.( )
she
hers
her
下列函数中,既是偶函数又在上单调递增的是 ()
若函数为奇函数,则()
已知,若,则的大小关系为()
函数的定义域为 ()
已知函数对任意实数,均有,若,则()