完成句子。

1. ______________, (为了通过考试) he stayed up late preparing for it. (order)

2. It was the second time that ______________. (他给我打电话) (telephone)

3. Finally we ______________ (完成这项任务), although it took a long time. (get)

4. It was a burning cigarette end _____________ (引起火灾) in the city. (cause)

5. People who listen to Hawking's lectures sometimes ______________.(发现很难理解他) (find)

电脑数字化虚拟的出现，为人类打开了探索事物存在和发展的多种可能性的空间，帮助人们超越现实时空和物质条件的局限，自由地将事物的多种可能召唤于前，进行各种自控试验。这体现了理论创新的（）

A、主体性

B、客体性

C、超越现实性

D、虚拟性