①向工商、质检等部门举报②找人砸掉卖肉者的肉摊
③与卖肉者协商并要求卖肉者赔偿损失④自认倒霉,将猪肉丢掉
A:①②
B:②④
C:①③
D:③④
下列有关细胞生命活动的分析正确的是( )
已知x1,x2是一元二次方程x2-2x=0的两根,则x1+x2的值是( )
His cousin hardly has vegetables these days, __________?