— I stayed up late to watch it yesterday evening.
A:Have a good day
B:It's fantastic
C:That will be very nice
D:I'm afraid I have no time
The plan was that the two companies should first reach an agreement on the basic principle, the details _____ later.
废品率x%和每吨生铁成本y(元)之间的回归直线方程为y∧=2x+256,这表明 ( )