更多“设随机变量X服从正态分布N（-1，9），则随机变量Y=2-X”相关的问题
The old man has three sons. ______ is a teacher. ______ is a driver. and ______ is a policeman.
A． One. the other. others
B． One. another. the other
C． Another. one. the third
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低周疲劳的特点是承受的交变应力很高，因此又称为应变疲劳。（）
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爱瑞克森的心理社会发展论中，第三期是生殖一运动期，年龄为______，主要矛盾冲突是______。
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急性对乙酰氨基酚中毒时，首选的治疗药物是（）
A.谷胱甘肽
B.N-乙酰半胱氨酸
C.熊去氧胆酸
D.腺苷蛋氨酸
E.皮质激素
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（）是QDII基金的会计核算和资产估值的责任主体。
A.中国证监会
B.基金登记机构
C.基金管理人
D.基金托管人
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男性，出生5天，因生后即有青紫来诊。查体：新生儿貌，中度紫绀，呼吸促，心脏杂音不明显。超声心动图检查示心房正位，心室右袢，主动脉位于右前方，起自右室，肺动脉位于左后方，起自左室，房间隔中部回声脱失5mm，室间隔完整，于主动脉弓降部可见一管道与肺动脉相通此症最适宜的手术时机是（）
A.立即 B.1个月龄 C.半岁 D.1岁 E.3岁
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在中国的传统节日中，（）是以月饼为代表食物的。
A.端午节B.重阳节C.春节D.中秋节
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管道和设备的金属表面的除锈方法有（）。
A . 手工除锈
B . 机械除锈
C . 化学除锈
D . 自然除锈
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多血质、胆汁质是比较好的气质类型。
A.对 B.错
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百狮坊俗称张家牌坊，被誉为“天下第一坊”，位于单县城内牌坊街中段。清康熙四十三年，为赠文林郎张蒲妻朱氏而建。
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In ancient times the most important examinations were spoken, not written. In the schools of ancient Greece and Rome, testing usually consisted of saying poetry aloud or giving speeches. In the European universities of the Middle Ages, students who were working for advanced degrees had to discuss questions in their field of study with people who had made a special study of the subject. This custom exists today as part of the process of testing candidates for the doctor’s degree. Generally, however, modern examinations are written. The written examination, where all students are tested on the same question, was probably not known until the nineteenth century. Perhaps it came into existence with the great increase in population and the development of modern industry. A room full of candidates for a state examination, timed exactly by electric clocks and carefully watched over by managers, resembles a group of workers at an automobile factory. Generally, during examinations teachers and students are expected to act like machines. One type of test is sometimes called an "objective" test. It is intended to deal with facts, not personal opinions. To make up an objective test the teacher writes a series of questions, each of which has only one correct answer. Along with each question the teacher writes the correct answer and also three statements that look like correct answers to students who have not learned the material properly.
In ancient times the most important examinations were spoken, not written. In the schools of ancient Greece and Rome, testing usually consisted of saying poetry aloud or giving speeches.
In the European universities of the Middle Ages, students who were working for advanced degrees had to discuss questions in their field of study with people who had made a special study of the subject. This custom exists today as part of the process of testing candidates for the doctor’s degree.
Generally, however, modern examinations are written. The written examination, where all students are tested on the same question, was probably not known until the nineteenth century. Perhaps it came into existence with the great increase in population and the development of modern industry. A room full of candidates for a state examination, timed exactly by electric clocks and carefully watched over by managers, resembles a group of workers at an automobile factory. Generally, during examinations teachers and students are expected to act like machines.
One type of test is sometimes called an "objective" test. It is intended to deal with facts, not personal opinions. To make up an objective test the teacher writes a series of questions, each of which has only one correct answer. Along with each question the teacher writes the correct answer and also three statements that look like correct answers to students who have not learned the material properly.
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各生产矿井，应本着（），（）、（）、（）的原则，结合本矿自然技术管理条件全面规划，统筹安排，进行试采解放煤炭资源。
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属于家庭财产保险保障范围的是（）
A.朋友寄存在家的一把红木椅子 B.一盆花 C.一包现金 D.一把红木椅子
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不同层级员工评价周期是不同的，以下哪个类型的员工评价周期最长（）
A.普通员工
B.基层管理者
C.中层管理者
D.高层管理者
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路由器的可靠性指路由器的可用性、无故障工作时间和故障恢复时间等指标。
A.对 B.错
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