【单选题】向8253芯片写入的计数初值,写到了()中。
【单选题】向8253写入的计数初值写到了什么中( )。
【单选题】在Excel中,下列改变活动单元格的操作,不正确的是()。
【单选题】向8253写入的计数初值首先写到了()中。
【单选题】When did he get off the plane?
A.
As soon as the plane was landing.
B.
He got off the plane a little bit late because he was checking his bags.
C.
He got off the plane before most passengers left the cabin.
D.
He got off the plane after most passengers left the cabin.
【单选题】圆锥面被倾斜于轴线的平面截切得到的截交线形状是( )