室性奔马律的组成是
A．S3与S1、S2
B．病理S3与S1、S2
C．S4与S1、S2
D．病理S4与S1、S3
E．S4与S2、S3
参考答案：B
椎管内面骨膜参与围成的是（）
A．硬膜外隙
B．蛛网膜下隙
C．终池
D．乙状窦
E．硬膜下隙
They will ________ their laptop computer brand in the newspaper, with a 10 percent discount
for the customers. [ ]
A. inform
B. advertise
C. announce
D. publish
