单项选择题
A.4~10个月 B.11~12个月 C.9个月 D.10个半月 E.2~3个月
A.3岁以内 B.6~7岁 C.3~6岁 D.10~14岁 E.7~l0岁
A.90mmHg B.55mmHg C.60mmHg D.65mmHg E.50mmHg