We strongly advise you ______ eating your meal so late. It's not healthy.
A:on
B:against
C:from
D:over
x∈R,下列不等式恒成立的是( )
地表崎岖,石灰岩广布的高原是( )
决定豌豆形状是圆滑还是皱缩的是( )