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大肠埃希菌分裂一代需要的时间大约是( )。
关于视网膜震荡,错误的是()
下列不是下颌骨易发生骨折的薄弱部位的是( )。
救援时,车场内推进运行限速()KM/H
政府通过社会政策行动去维护社会公平,调节收入分配,关照困难群体,使全体人民能够共享经济与社会发展的成果。这体现了社会政策的()特征。
股票是股份公司发给股东作为已投资入股的证书与索取股息的凭票。以下关于股票的描述错误的是( )。
2岁女孩,近日发烧,左上腹有一拳头大小包块来院就诊,首选的检查方法()
血红蛋白病的基因诊断常用技术不包括下列哪一项()。
高速铁路接触网定位器坡度一般根据不同的线路外轨超高,控制在8~13度之间。
按照包装在流通领域中所起作用的不同,主要用于保护商品,防止在储存、运输和装卸过程中发生货损、货差的是()
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