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聚合釜机械密封是采用双端机械密封,一种用水做封液,另一一种用32#抗磨液压油做封液,封液压力()。
在华为路由器上,用delete删除了一个名为test.bin的文件,现想从回收站中恢复该文件,使用的命令是().
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关于我国区域开放,以下说法正确的是( )。
患者男,70岁,因咳嗽20年,心悸、气促5年,加重伴意识不清1d,以慢性支气管炎急性发作、阻塞性肺气肿、肺心病、肺性脑病收入院。入院后经用口面罩无创机械通气、抗感染、解痉祛痰药物治疗6h后意识清楚。维持上述方案治疗36h后,再次出现神经精神症状,调整机械通气参数治疗后,神经精神症状消失,动脉血气分析、电解质、肾功测定见表1。 入院后第3天动脉血气判断是()。
状态修
()承担的责任范围很广,除财产保险基本险承保的责任外,还承担暴雨、洪水、台风等自然灾害。
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Smaller engines can be made more rigid than large ones and may not have ().
Smaller engines can be made more rigid than large ones and may not have ().
Smaller engines can be made more rigid than large ones and may not have ().
Smaller engines can be made more rigid than large ones and may not have ().
Smaller engines can be made more rigid than large ones and may not have ().
Smaller engines can be made more rigid than large ones and may not have ().
Because the castings of smaller engines are not so big and heavy, () and cylinde...
Because the castings of smaller engines are not so big and heavy, () and cylinde...
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