單項(xiàng)選擇題急性單核細(xì)胞白血病M5a的診斷標(biāo)準(zhǔn)()

A.骨髓中原單核細(xì)胞≥80%
B.骨髓中原單核細(xì)胞≥70%
C.骨髓中原單核細(xì)胞≥60%
D.骨髓中原單核細(xì)胞≥50%
E.骨髓中原單核細(xì)胞≥30%