【单选题】If you ________ yesterday,you ________ with your mother now.
B.
had set off; would be talking
C.
set off; would have talked
D.
had set off; would talk
【判断题】柔性制造单元(FMC)是柔性制造系统向廉价化及小型化方向发展的一种产物。( ) 判断对错
【单选题】Do you know ____? [ ]
B.
when to Li Lei set off
C.
when did Li Lei set off
【单选题】They _________the village at noon. [ ]
【单选题】数控机床的直线运动定位精度是在()条件下测量的
【判断题】( )直线运动定位精度是在满载条件下测量的。