—No,I won't.I know that ______ of us are perfect after all.
A:none
B:neither
C:each
D:all
据统计,环境污染每年给我国造成的直接经济损失高达680亿元,相当于8次唐山大地震所造成的损失。这表明( )
函数y=﹣cos(x2﹣π3)的单调递增区间是( )