下列一元二次方程中,常数项为0的是( )
A:x2+x=1
B:2x2﹣x﹣12=0
C:2(x2﹣1)=3(x﹣1)
D:2(x2+1)=x+2
下列说法正确的是( )
We will have to set off ____ to avoid the heavy traffic tomorrow morning