如果诊断得到证实，下一步最重要的治疗是
A．手术修补主动脉窦瘤B．药物治疗C．冠状动脉搭桥术D．Bantall手术E．胸腔闭式引流
参考答案：D
Tom ________ two of his classmates ________ invited to the party.
A．as well as; was
B．as good as; were
C．and; have
D．as well; has been
