【简答题】微机保护装置硬件系统由哪五部分组成?分别起什么作用?
【单选题】药物剂型可按下列哪些方法进行分类错误的是
【单选题】We walked a couple of blocks, looking in _______ for a taxi. How disappointed we were!
【单选题】_____ to get there on time, we walked as fast as we could.
【单选题】After we walked ______ the forest, and ______ a river, we arrived at that small village.
【单选题】以下哪个创新的自主性最强?
C.
在引进国外先进技术的基础上,积极促进消化吸收和再创新