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水在管内流动,截面1处管内径为0.2m,流速为0.5m.s -1,由于水的压强产生水柱高1m; 截面2处管内径为0.1m 。若忽略水由1至2处的阻力损失,试计算截面1、2处产生的水柱高度差h为多少m?
设计一个算法,功能是在带头结点的单链表head中删除数据域值最小的结点。
支架梁扭距的检查方法是在检查点前五架支架梁水平面上,尺量后一架支架梁的中线点至前一架支架梁两端的距离,求其差值。
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墨西哥太阳能发电基地年辐射强度超过2000千瓦时/平方米,技术可开发量88万亿千瓦时/年。其中,加利福尼亚湾西侧的下加利福尼亚半岛的年辐射强度最高,在2300千瓦时/平方米。
产后低热不退,腹痛绵绵,喜按,恶露量多,色淡,头晕心悸,舌淡,苔薄,脉细数。多属( )。
健康的生活方式是什么?
能够将路径转换为选区的操作方法是以下哪些()?
确诊艾迪生(Addison)病哪项试验最具诊断价值()
国际卡商户结算手续费中,支付给发卡银行的交换费的影响因素包括()。
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