单项选择题
A.5% B.15% C.25% D.35% E.45%
A.5% B.10% C.5‰ D.10‰ E.15%
A.50%~70% B.50‰~70‰ C.50/万~70/万 D.50/10万~70/10万 E.50/100万~70/100万