转动设备的油堵螺纹一般采用（）
A、细牙螺纹；
B、粗牙螺纹；
C、普通螺纹；
D、特殊螺纹。
参考答案：A
-Are you still thinking about yesterday's party?
-Oh, that's ________.[ ]
A．what makes me feel excited
B．whatever I fell excited about
C．how I feel about it
D．when I feel excited
探放老空水、陷落柱水和钻孔水时，探水钻孔要成组布设，钻孔终孔位置以满足平距3m为准。
