— Have you got the results of the final exam?
— Not yet. It will be a few days ______ we know the full results.
A:since
B:after
C:before
D:that
癌症患者腹部积水后,为了利尿排水应静脉输送的主要成分是( )
时刻
t2
t3
t4
t5
速度(m/s)
5.59
5.08
4.58