简述CRH2A型动车组轴温报警切除/复位操作。

A. 言志说
B. 载道说
C. 心生说
D. 缘情说
E. 韵味说

A. 链球菌
B. 肺炎双球菌
C. 大肠杆菌
D. 金黄色葡萄球菌
E. 阿米巴原虫

A. only when there is positive stability
B. only when there is negative stability
C. only when there is neutral stability
D. at all time