【判断题】The Trojan is a virus that keeps shutting down your computer.
【单选题】物质的量为n的纯理想气体,该气体的下列物理量中,其值确定后,其它状态函数方有确定值的是( )
【简答题】N. a person that you know, especially somebody who can be helpful to you in your work
【简答题】n. an old person, especially somebody who has retired from work