忠诚是品格，务实是（），简单是方法，三者互相促进，互为支撑。
A.态度
B.状态
C.观念
参考答案：A
Sun Yang, a young Chinese swimming talent, ___________several gold medals before 2012 London Olympics.
A．won
B．has won
C．had won
D．were to win
肺梗死
A．梗死灶呈节段状B．贫血性梗死灶呈锥体状C．出血性梗死灶呈锥体状D．梗死灶呈地图状E．梗死灶呈液化性坏死
