HACCP体系
参考答案：
指危害分析和关键控制点，是保证食品安全和产品质量的一种预防控制体系。
A: Is anything wrong You look pale. B:().
A. My daughter is in hospital. I must ask for leave to take care of her.
B. Oh, I get up late this morning.
C. Thank you. Nothing is wrong with me.
D. Oh, I got a promotion finally.
以下疾病是珠蛋白肽链量异常所致的是（）
A.遗传性棘形细胞增多症
B.镰状细胞贫血
C.海洋性贫血
D.PNH
E.TTP
