柔性钟摆钻具和常规钟摆钻具相比,防斜、降斜效果要()。 ["强","弱","一样","不确定"]
据《灵枢•师传》,胃中热则() ["脐以上皮热","消谷","令人悬心善饥","腹胀","脐以下皮寒"]
流体力学中三个主要力学模型是();();()。
据《灵枢•师传》,肠中热则() ["出黄如糜","消谷","令人悬心善饥","腹胀","脐以下皮寒"]
使用弯螺杆钻具钻进中泵压突然上升应()。 ["停泵","停转盘","上提钻具","继续加压"]
()末班车或乘客无返换乘条件的列车,不得通过。不准列及其以上客运列车在同一车站连续通