A.7.9km/s
B.11.2km/s
C.16.7km/s
D.110km/s
答案:A
I used to quarrel a lot with my parents, but now we_______ fine.
A.calm down
B.care about
C.give up
D.get along
内生肌酐清除率常用于临床,作为判断肾小管滤过功能、指导治疗的最简便而有效的方法。()