更多“假设随机变量X与Y的相关系数为ρ,则ρ=1的充要条件是( ”相关的问题
某工程一次投资100万元,随后4年每年等额收回40万元。已知基准贴现率为8%,则该工程的净现值是()万元。
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单机运行的机组,当负荷增加时,机组的转速将()。
A.不变
B.减小
C.增加
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列车运行图的编制应参照以下哪些因素?()
A.列车在区间运行时分
B.各站停站时分
C.各折返站折返作业时分
D.不同时间的营业时间
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为避免或减弱肝脏的首过效应,肛门栓应塞入距肛门处()
A.1cm B.2cm C.3cm D.4cm E.5cm
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()行为属于欺诈消费者的行为。
A.销售“处理品”而谎称是正品的 B.故意短斤少两的 C.偷换原材料的 D.拒绝补足商品数量的
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计划经济体制下政府调节土地利用和市场经济体制下政府调节土地利用在本质上是无差别的。
A . 正确
B . 错误
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患者王某,发热,烦闷,阴囊收缩。对照《内经》原文,当诊断为:()。
A.阳明受邪
B.少阳受邪
C.太阴受邪
D.少阴受邪
E.厥阴受邪
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树木燃烧这一现象的本质是()。
A.树木中的燃素释放出来
B.树木与氧气发生剧烈的燃烧反应
C.树木与氧气发生置换反应
D.树木发生分解反应
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佝偻病颅骨软化多见于
A.早产儿
B.新生儿
C.1~3个月婴儿
D.3~6个月婴儿
E.9~12个月婴儿
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有人做事高调,喜欢表现自己;有人做事低调,谦虚谨慎。你是怎么看的?
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16-20 China’s employment and re-employment situation remains tough with a surge this year in the number of graduates hitting the job market and in unemployment in general, a senior official said. The country’s registered average unemployment rate in urban areas reached 4 per cent last year and is expected to go higher this year, Labour and Social Security Minister Zheng Silin told Xinhua yesterday. There are nearly 14 million laid-off workers in urban areas so far. And more than 10 million new graduates are predicted to enter the work force Zheng said. To make things worse, about 150 million rural workers will head to the cities to seek employment, he said. Zheng, who was appointed as the minister during the first session of the 10th National People’s Congress in March, has urged his departments nationwide to do more to assist laid-off workers to restart their lives.
A.Tough Year for Job SeekersB.College Graduates Challenged by EmploymentC.Too Many Workers Laid Off This YearD.Minister Hopeful of Employment Prospective
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关于压力性损伤的预防,有关措施不正确的是()。
吴先生,68岁,因脑溢血已在家卧床2个月,大小便失禁,不能自行翻身,近日尾骶部皮肤呈紫红色,压之不褪色。
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相同厚度的同一材料分别承受硬射线和软照射,哪种情况下对射线的吸收较少?()
A.承受硬射线照射 B.承受软射线照射 C.两种情况下都一样 D.以上都不对
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下列项目中属于货币性项目的有______。
A.预付款项
B.应收账款
C.应付账款
D.固定资产
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