【单选题】第四代计算机采用的逻辑元件是
D.
Outlook Express和Foxmail
【单选题】— I'd love to go to the party with you tonight. — Oh, I'm sorry, there be a party because of the coming exam. [ ]
【单选题】There a Christmas party in Sunshine Secondary School next Friday evening.
【判断题】继电器一个线圈开路,另一个线圈接入电源使用,可以达到缓动的目的。
【单选题】在下列哪一种情况下,互补的DNA两条单链会复性?