安全生产标准化采煤专业岗位规范要求作业前进行（）。
A.隐患排查
B.安全检查
C.安全确认
参考答案：C
It's raining heavily outside. He has to stay at home, ______? [ ]
A. has he
B. hasn't he
C. does he
D. doesn't he
患儿，男，9岁。发作性惊厥3年。发时全身肢体抽搐，双目上视，神志不清，止后如常。舌苔白，脉弦。诊断为风痫。治疗首选( )
A．医痛丸B．定痈丸C．通窍活血汤D．涤痰汤E．河车八味汤
