纳入扩大国家免疫规划的疫苗接种率以乡镇（街道）为单位达到（）以上？

A.1/6
B.1/5
C.1/8
D.1/3
E.2/3

A.1‰
B.10‰
C.5.3‰
D.2.5‰
E.7.8‰

A.98%，96%
B.94%，95%
C.95%。90%
D.93%。90%
E.90%，85%