有关初级保健，以下错误的是（）。

A．是低级的保健

B．是基层群众与医疗卫生部门接触的第一步

C．提供基本的预防、医疗和康复服务

D．是必不可少的

E．是基层的卫生保健

I had finished supper and _____ have a bath when the power was cut off.   [ ]

A. was going to  

B. was about to      

C. was to            

D. would