常见的致敏物有哪些?
用治肺肾两虚、肾不纳气的虚喘久嗽当选() ["A.五味子","B.乌梅","C.党参","D.蛤蚧","E.五倍子"]
治疗阴虚阳亢宜用() ["寒因寒用","热因热用","热者寒之","阳病治阴","益火之源"]
立式车床工作台的回转精度取决于定心主轴轴承配合精度、()及回转轴线与环形导轨的)相关精度。 ["装配精度","环形导轨体的几何精度","主轴承精度","润滑情况"]
构造油气藏是在储集层()发生局部变形或变位而形成的圈闭中聚集油气后形成的油气藏。 ["左侧面","右侧面","顶面","底面"]
风险监控