扁铲是由工具钢制成的,刃部需经热处理()热处理后才能錾切金属。
A.回火
B.正火
C.淬火
参考答案:C
—Could you tell me _____?
—By underground. [ ]
A. how did you come here
B. how you came here
C. when did you come here
D. when you came here
女性,24岁,发热、腰痛3天,体温38.0℃,巩膜黄染,肝肋下,1.0cm,脾肋下4cm,尿胆原(++),血清胆红素25μmol/L,血红蛋白80g/L,白细胞13.0×109/L,血象可见晚幼红细胞,骨髓增生明显活跃,中晚幼细胞增多,粒红比0.8:1。诊断为()
A.慢性肝炎急性发作
B.急性黄疸型肝炎
C.急性红白血病
D.自身免疫性溶血性贫血
E.巨幼细胞贫血