In his speech the headmaster________ to the great help the school received from the district government. A. expressed B. pointed C. explained
流经新疆境内的外流河是( ) A雅鲁藏布江 B塔里木河 C黑龙江 D额尔齐斯河
人们在历史研究中,由于立场和观点的差异,对历史事件的解释往往会有不同,如关于哥伦布航行到美洲这一事件,过去欧洲人总以欧洲为中心来理解
为了除去氯化钠样品中的碳酸钠杂质,兴趣小组最初设计了如下的方案并进行实验。 (l)写出沉淀A的化学 。 (2)加入CaC12溶液
血液应属于哪一种组织?( ) A、上皮组织 B、肌肉组织 C、结缔组织 D、神经组织
在△ABC中,若︱sinA-︱+(-cosB)2=0, 则∠C=___________________.
Bob always took the newspaper to Grandpa White’s home before going home. Grandpa White’s was at the end of the road. Bob liked Grandpa White. He was often waiting for him near the front gate with
随着生产力的进步,封建生产关系代替奴隶制生产关系。下列选项中关于封建统治表述正确的是( )①经济剥削②政治压迫③思想钳制④自由平等A.