攉煤工必备的上岗条件是什么?
肺热津伤型痿证的最佳治疗方剂宜选()。 ["沙参麦冬汤","增液汤","清燥救肺汤","百合固金汤","益胃汤"]
苯环是指() ["3750~3000cm-1","1900~1650cm-1","1900~1650cm-1;1300~1000cm-1","3750~3000cm-1;1300~1000cm-1","3300~3000cm-1;1675~1500cm-1;1000~650cm-1"]
下列各项中,不属于“内风”的是()。 ["肝阳化风","阴虚风动","风邪袭表","血燥生风","血虚生风"]
可致幼畜软骨损害的抗菌药是() ["磺胺类","二氨基嘧啶类","氟喹诺酮类","硝基咪唑类","氟苯尼考"]
回柱绞车司机与回柱放顶工的联系,必须使用电铃(或声光)信号装置,信号是如何规定的?