单项选择题

A.≥70%,Hb≤1g/L,≤10g/L,≤50%
B.≥80%,Hb≤10g/L,≤1g/L,≤50%
C.≥70%,Hb≤10g/L,≤1g/L,≤50%
D.≥80%,Hb≤1g/L,≤10g/L,≤50%
E.≥70%,Hb<10g/L,≤10g/L,≤50%