A:x=0
B:x=1
C:x1=0,x2=1
D:x1=0,x2=﹣1
下列有关水资源的认识中,错误的是( )
Our English teacher often_______ us ______ her home to have a party.
生命是宝贵的,下列选项中不能体现尊重生命、呵护生命的行为是( )