A.20%〜30% B.30%〜40% C.30%〜50% D.40%〜50%:
A.淋巴細(xì)胞 B.血小板 C.網(wǎng)織紅細(xì)胞 D.成熟紅細(xì)胞
A.HLA B.MHC C.MHS D.MHA