A.懸浮液 B.真溶液 C.膠體溶液 D.溶液
A.0.1μm-0.001μm B.大于0.1μm C.小于0.001μm D.0.1μm-0.01μm
A.30%-40% B.40%-50% C.50%-60% D.70%-80%