a.乳浊液b.胶体溶液c.真溶液d.混悬液这四种分散系统，按其分散度的大小，由大至小的顺序是(B.

A.a>(正确答案)

b>

c>

d(B.c>b>a>d(C.d>a>b>a(D.c>b>d>a

E.b>d>a>c