不符合收缩早期喷射音的是
A.S1后0.05~0.07sB.声音呈高频爆裂样C.短促高调、清脆D.主动脉瓣区、肺动脉瓣区皆可听到E.见于正常青少年
参考答案:E
齐侯曰:“余姑翦灭此而朝食。”不介马而驰之。郤克伤于矢,流血及屦,未绝鼓音。
During oil transfer operations,who is responsible for ensuring that the posted transfer procedures are followed?()
A.The designated person in charge
B.The tankerman
C.The senior able seaman
D.The oiler