单选题
发布日期:2020-04-10
1 or 3
2 or more of differing models
2 or 4 of the same model
2 or more of the same model
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设项目A的年收益率的期望值为30%,标准离差为12%,项目B的年收益率的期望值为20%,标准离差为10%,则应选择( )比较合理。
停电作业时,作业人员(包括所持的机具、材料、零部件等)与周围25kV带电设备的距离不得小于()mm。
行为人误把白糖、碱面当作砒霜等毒药去毒杀人,应以犯罪未遂追究行为人的刑事责任
阅读《马伶传》的一段话: 其夜,华林部过马伶曰:“子,天下之善技也,然无以易李伶,李伶之为严相国至矣,子又安从授之而掩其上哉?”马伶曰:“固然,天下无以易李伶,李伶即又不肯授我。我闻今相国昆山顾秉谦者,严相国俦也。我走京师,求为其门卒三年。日侍昆山相国于朝房,察其举止,聆其语言,久而得之,此吾之所为师也。”华林部相与罗拜而去。 文中所说马伶演艺超过李伶,启示的经验说明什么?
股份有限公司股东人数有一定的限额,为2~200人。
下列涉及历法的说法中,正确的有()。
唐乾陵因( )两种大型石雕而著名。
土壤流失的防治就是以预防为主,在土壤流失严重地区应先保护后利用。
男性,31岁。转移性右下腹痛24小时,伴恶心、呕吐、发热。查体:T38.5℃,P88次/分。右下腹压痛、反跳痛、肌紧张。血白细胞13×109/L,中性比86%。尿常规白细胞1~2/HP,红细胞2~3/HP。若手术,其最严重的并发症是()。
下面描述中不属于软件需求分析阶段任务的是( )。
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