A.50ml B.100ml C.150ml D.200ml E.250ml
A.肝 B.脾 C.骨髓 D.淋巴結(jié) E.卵黃囊
A.4~6天,4~6月 B.4~6周,4~6歲 C.4~6天,4~6歲 D.4~6月,4~6歲 E.4~6周,7~8歲