A.20%~25% B.25%~30% C.30%~40% D.40%~50% E.50%~60%
A.生后1~2個(gè)月B.生后3~4個(gè)月C.生后5~6個(gè)月D.生后7~8個(gè)月E.生后10~12個(gè)月
A.卡介苗 B.脊髓灰質(zhì)炎疫苗 C.傷寒疫苗 D.白喉疫苗 E.乙肝疫苗