单项选择题

A.10%氯化钾10ml+10%葡萄糖溶液500ml
B.15%氯化钾15ml+10%葡萄糖溶液500ml
C.10%氯化钾20ml+10%葡萄糖溶液500ml
D.15%氯化钾20ml+10%葡萄糖溶液500ml
E.15%氯化钾20ml+10%葡萄糖溶液250ml