病人王某，患肝硬化五年，经血液检测，病人为乙型肝炎表面抗原携带者，近来发生肺部感染，并出现呼吸困难。

病人为乙型肝炎表面抗原携带者，对其应实施哪种隔离（）

A．接触隔离

B．严密隔离

C．消化道隔离

D．保护性隔离

E．呼吸道隔离

The external auditing shall be conducted by the Customs over the following enterprises and other organizations

A．Enterprises and other organizations engaged in foreign trade only
B．Enterprises and other organizations engaged in domestic trade only
C．Enterprises engaged in the business of inward process only
D．Both A and C