When I see too much water ________ in our school every day, I feel very angry.
A:is wasted
B:wastes
C:was wasted
D:waste
太阳活动最激烈的显示是( )
若a,b,c均为正数,且a+b+c=6,2a+2b+1+2c+3≤|x﹣2|+|x﹣m|对任意x∈R恒成立,求m的取值范围.