—Do you know _______ now?

—In the People's Hospital.[ ]

A. where is Lin Li's father working

B. where did Lin Li's father work

C. where Lin Li's father is working

D. where Lin Li's father worked

公文区别于其他信息记录的主要特点是（）

A.传播知识

B.具备考察知识

C.交流思想

D.具备法定的权威性