2岁小儿，女，曾于出生时诊断为“法洛四联症”，近2天出现呕吐、腹泻，首选的护理措施是（）

A.吸氧

B.卧床休息

C.暂时禁食

D.补充液体

E.按医嘱给予抗生素控制感染

In relation to the management and administration of companies:

(b) Explain the legal requirements for the appointment of the external auditor and the internal audit commission. (5 marks)