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疲劳是指金属材料在交变应力作用下,在工作应力高于材料的屈服强度时,经过较长时间的工作而产生裂纹或突然发生完全断裂的现象。
种植体界面化学的特性主要取决于下列哪项?( )
适用于有高峰流量的大型油库的油气回收装置是下列哪种?()
手动消防炮灭火系统能在现场手动或自动操作消防炮的固定消防炮灭火系统。
自劳动能力鉴定结论作出之日起( )后,工伤职工或者其近亲属、所在单位或者经办机构认为伤残情况发生变化的,可以申请劳动能力复查鉴定。
提单的种类不包括()
符合贫血患者临床表现的有()
注册会计师在对内部控制进行了解后,针对某一项认定制定审计计划时,下列表述正确的是( )。
北宋李诫写的____是世界上最早、最完备的建筑学著作。
美国一女患者,患有严重的脑综合征、慢性压疮(褥疮)、心脏病、糖尿病等,对环境没有感觉,只有原始的脑功能,有自主呼吸,没有认识、行为能力,且无改善的希望,住院不久即插入鼻饲管以维持生命。她的监护人要求取走鼻饲管,被主管医师拒绝,监护人向法院起诉要求强迫取走,法院同意并下令取走;但受理上诉的法院否定了这个决定,认为中止喂饲就是杀人。3年后,女患者死亡,她的鼻饲管仍保留着对主管医师的行为的正确伦理评价是()
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