全血细胞减少,骨髓增生低下,造血细胞减少,这种血象及骨髓象不见于()
A.再障
B.低增生性白血病
C.溶血性贫血
D.PNH
E.骨髓纤维化
参考答案:C
You had better _____your hands before meads.
A.wash
B.to wash
C.not wash
D.will wash