A:Such as
B:As a result
C:As soon as
D:In fact
Which of the following doesn't have a linking sound (连读)?
①υ(A)=0.5mol•L﹣1•S﹣1②υ(B)=0.3mol•L﹣1•S﹣1
③υ(C)=0.8mol•L﹣1•S﹣1④υ(D)=1mol•L﹣1•S﹣1.