柱塞泵的缸数越少其工作越()。 ["大","小","不均匀","均匀"]
应当作为我国化学制药工业发展重点的是:() ["生物药品","蓝色药品","天然药品","以上说法都正确"]
由实测坡面线与()比较可知某断面是否缺石并可计算缺石面积。 ["设计高程","设计坡面线","设计宽度","设计深度"]
关于异烟肼,下列正确的是:() ["可表现为快代谢型或慢代谢型","导致出血","有抗M胆碱作用","快速耐受性"]
压裂泵主体结构是由动力端和()组成。 ["驱动系统","液力端","连杆系统","输出端"]
简述油罐人孔,透光孔,量油孔,消防泡沫室,放水管的?