依据病理表现急性心包炎分为_____和_____。
参考答案：纤维蛋白性（干性)；渗出性（湿性)
— What happened to Bill?
— He _____ really fast when suddenly he ran headfirst into a parked car. [ ]
A. had run
B. was running
C. has run
D. has been running
厦门市汽车总上牌量呈负增长的月份是（）。
A．1月
B．4～6月
C．2月、5月
D．5月
