Some university students are _____ to the Internet, so that they can't put their mind to their studies. [ ]

A. addicted

B. creative

C. special

D. unique

职工劳动形态可以划分为（）等三种形态。

A、长期的、短期的、永久的

B、潜在的、流动的、凝固的

C、单独的、合伙的、规模的

D、私有的、公有的、共有的