Nancy, carrots are good for_____eyes. Eat some, please.( )
my
your
her
his
“”是“方程表示焦点在轴上的双曲线”的().
已知命题,,则().
已知函数是定义域为的偶函数,且在区间上单调递增。若实数满足则的取值范围是()
设,则的值是()
要得到的图象只需将y=3sin2x的图象 ()