正常成人右下肺动脉主干直径一般为（）。
A.≤5mm
B.≤8mm
C.≤10mm
D.≤15mm
E.≤20mm
参考答案：D
The sculptor completed his work on a sudden_______. [ ]
A. inspection
B. admiration
C. contradiction
D. inspiration
自助设备上发生的跨行和异地交易手续费由发卡行自动扣收.
