A.5g•-11的NaCl溶液 B.9g•L-1的NaCl溶液 C.12g•L-1的NaCl溶液 D.15g•L-1的NaCl溶液
A.0.01mol•L-1CaCl2溶液 B.0.02mol•L-1Na2CO3溶液 C.0.02mol•L-1葡萄糖溶液 D.0.02mol•L-1CH3COONa溶液
A.沸点降低B.蒸气压下降C.凝固点上升D.蒸气压上升