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
提出“泛智教育”思想的教育家是( )
A．夸美纽斯
B．赫尔巴特
C．洛克
D．杜威
This is a very big company. It has _____ workers. Do you want to work here?[ ]
A. five thousand
B. five thousands
C. five thousands of
D. five thousand of
