按加水稀释后的状态，乳油可分为（）
A.水乳状状乳油
B.可溶性乳油
C.溶胶状乳油
D.乳浊状乳油
E.悬浮状乳油
参考答案：B, C, D
This year has _______ World Year of Physics ______ Albert Einstein, the father of modern physics.
A．made; remember
B．made; to remember
C．been made; remember
D．been made; to remember
限制性作用决定着种群的增长趋势。( )
