【判断题】草履虫把含氮废物和多余水分排出体外的过程叫排泄,而把不能消化的食物残渣排出体外的过程叫排遗。
【单选题】由高分子物质组成的骨架实体,药物可溶解,包裹于其中或吸附在实体上的膜壳药库型制剂是().
【单选题】'Got your plans for the weekend, Bill?' 'Well, I had planned to go to London, but I _____ afford the train fare.'
【判断题】纳米粒是由高分子物质组成的骨架实体,药物可以溶解、包裹于其中或吸附在实体上。
【简答题】I once had my Chinese MBA students brainstorming on “two-hour business plans”. I separated them into six groups and gave them an example: a restaurant chain. The more original their idea, the better, ...
【判断题】机车出入段时昼间的道岔开通信号——拢起的黄色信号旗高举头上左右摇动。