【简答题】The report "Synthetic Biology" was submitted to the US Congress by the US Department of Energy in ______. Three technical challenges in the synthetic-biology field were formulated: i) Genome scale eng...
【判断题】当容许信号灯光熄灭或容许信号和通过信号机灯光都熄灭时,司机在确认信号机装有容许信号时,列车不准越过该信号机。
【单选题】下列总线中,支持即插即用功能的总线是(10)。
【单选题】作为现行PC机的主要系统总线是______。
【单选题】装有容许信号的通过信号机,当容许信号灯光熄灭或容许信号和通过信号机灯光都熄灭时,司机在确认信号机装有容许信号时,以最高( )速度通过该信号机。