属于甲型强心苷元的是( )
A．羟基洋地黄毒苷元B．绿海葱苷元C．紫花洋地黄苷AD．真地吉他林E．绿海葱苷
参考答案：A
Recently our class held a fierce _____ as to whether cameras should be installed in public areas.
A．conflict
B．debate
C．bargain
D．contest
怎样排除发电机过热的故障？
