不符合溶血性贫血骨髓象特征的是()
A.小细胞低色素性贫血
B.粒/红比值降低
C.红细胞系统增生显著
D.可见豪焦小体和卡波环等红细胞异常结构
E.骨髓增生明显活跃
参考答案:A
—Do you know Li Ming?
—Li Ming? Which one? I know _______Li Ming in our class very well. He is _______Lei Feng of our times.
A.不填;不填
B.a;a
C.a;the
D.the;the
一根圆钢截面积为2平方厘米,拉断时拉力为70KN,则圆钢的强度极限为()。
A、300MPa
B、300Pa
C、350Mpa
D、350Pa