单选题
发布日期:2021-03-22
center of gravity is lowered
center of buoyancy is lowered
reserve buoyancy is unchanged
hull freeboard is increased
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施吕特尔
牵引缓冲装置的用途是将机车与车辆连接或分离,在运行中传递牵引力、缓和及衰减牵引力与制动力的变化,具有()的作用。
下列关于血管紧张素转化酶抑制药(ACEI)的叙述,错误的是()
磁场矢量垂直于地面的电磁波叫垂直极化波。
下列不属于网络财务管理的优势的是()
比较《建筑地基基础设计规范》(GB50007-2002)、《公路桥涵地基与基础设计规范》(JTJ024-85)和《港口工程地基规范》(JTJ250-98)三本规范的地基沉降计算方法,下列选项中哪些判断是错误的?()
关于记账式国债的特点,说法错误的是( )。
提供社会服务的社会机构
联锁表的编制程序一般是先填写()。
项目可能出现大量的不同的工作结果。你需要收集有关这些工作结果的信息,例如发生什么样的成本,产生了什么可交付成果,以及还存在什么突出问题等等。你需要这些信息是为了什么()。
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