【判断题】持续性病毒感染的特点是病毒虽已被清除掉,但症状仍可持续数年甚至数十年。( )
【单选题】What does Student B mean when he says this?
A.
It's hard to imagine an emotionally independent machine.
B.
Many new things nowadays were once ridiculous dreams.
C.
The technological changes have greatly influenced our life.
D.
People communicate better and live a more comfortable life.
【简答题】计算机网络的发展经过哪几个阶段?每个阶段各有什么特点?
【单选题】《水利水电土建工程施工合同条件》规定,《工程量清单》中开列的工程量是( ),不是承包人为履行合同应当完成的和用于结算的工程量。
【单选题】What does Student B mean when she says this?
A.
It's hard to imagine an emotionally independent machine.
B.
Many new things nowadays were once ridiculous dreams.
C.
The technological changes have greatly influenced our life.
D.
People communicate better and live a more comfortable life.
【单选题】台式机开机启动时,如果想要进入BIOS设置,应立刻按下( )键,就可以进入BIOS设定界面。
【简答题】计算机网络的发展分几个阶段?各有什么特点?