由绝对值得性质可知原函数为偶函数，故图象关于y轴对称
故选B
Parents have to be able to to be , to go with their kids, and also give them the room to grow.
A．flexible
B．strict
C．responsible
D．careful
属于高毒类的有机磷农药是
A．敌百虫
B．敌敌畏
C．对硫磷
D．马拉硫磷
E．二嗪农
