引起输血发热反应最常见的原因是()。
A.血型不合
B.致热原
C.细菌污染
D.红细胞破坏
E.过敏物质
参考答案:B
粒度组成
In terms of the Companies Act, 1995, explain:
(a) the role of the Registrar of Companies in the registration process of a company; and (5 marks)