A.2~10岁以后体重(kg)=年龄(岁)×2+6(或5)
B.2~10岁以后体重(kg)=年龄(岁)×3+8(或9)
C.2~10岁以后体重(kg)=年龄(岁)×2+7(或8)
D.2~10岁以后体重(kg)=年龄(岁)×3+7(或8)
E.2~10岁以后体重(kg)=年龄(岁)×7+2(或3)