下载APP
【多选题】
打眼工站在钻机侧后方,一手把住手柄，一手操纵开关,两腿前后错开,保持身体平衡，注视钻杆,缓送( )阀门,使气腿蹬到( ),并达到一定的支撑力。
A.
气腿;
B.
风水;
C.
实处;
D.
底板
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】After the birth of my second child，I got a job at a restaurant.Having worked with an experienced 16for a few days，I was 17to wait tables on my own.All went 18that first week.When Saturday night came，I...
A.
repeated
B.
discovered
C.
corrected
D.
described