()年,陈光甫先生创立的上海商业储备银行旅行部从银行独立出来,正式成立为中国旅行社。 ["1923","1924","1925","1927"]
磁场中各点磁场强弱和方向的物理量是()。 ["磁通量","磁感应强度","磁场强度"]
英语中表示"休闲"的单词是()。 ["leasure","recreation","freetime","relax"]
哪一类认真休闲获益最多() ["Amateur","兴趣追求","职业性志愿者"]
以下不属于Q0S管道模型的是() ["差分模型","Uniform模型","Pipe模型","ShortPipe模型"]
电焊工需持哪些有效证件上岗?