【简答题】气缸工作容积(V h )(气缸排量) :
【单选题】某汽油机的气缸数目 i = 6 ,冲程数为 4 ,气缸直径为 100 mm ,冲程 115 mm ,则该发动机气缸的工作容积 V h 为 升 。
【判断题】证券分析师应当在投资分析、预测或建议的表述中将客观事实与主观判断严格区分,并就主观判断的内容做出明确提示。( )
【判断题】地理信息系统是一门集计算机科学、信息学、地理学等多门科学为一体的新兴学科。
【多选题】《地理信息系统原理》课程对我们地理信息科学专业来说是( )。
【简答题】It was getting dark and snow was coming down. Joe was driving home. He’d been unemployed since the factory closed. Most of his friends had left, but he stayed on. After all, he was born here. Suddenly...