A.10~15% B.15~20% C.20~25% D.25~30% E.30~35%
A.<10% B.10~15% C.15~20% D.20~25% E.25~30%
A.先天不足 B.疾病影響 C.長(zhǎng)期發(fā)熱 D.長(zhǎng)期腹瀉 E.喂養(yǎng)不當(dāng)