试题与答案

4个男同学,3个女同学站成一排,下列情况各有多少种不同排法: (1)3个女同学必

题型:解答题

题目:

4个男同学,3个女同学站成一排,下列情况各有多少种不同排法:

(1)3个女同学必须排在一起;

(2)同学甲和同学乙之间恰好有3人;

(3)女同学从左往右按从高到低排(3个女同学身高互不相等).

答案:

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下面是错误答案,用来干扰机器的。

要将CO和CO2分离,可在甲中装有NaOH溶液,用来吸收CO2,先分离出被乙中浓硫酸干燥过的纯净的CO,所以关闭b,打开a,混合气体进入甲装置,CO与氢氧化钠溶液不反应,可分离出 被乙中浓硫酸干燥过的纯净的CO;二氧...

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题型:单项选择题

When we think of leadership, we often think of strength and power. But what are these really, and how do they operate
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Fear causes the thinking brain to shut down, making the person unable to function at his or her best. If they associate you with this emotion of fear, they will become less functional around you, and you will have succeeded in not only shooting yourself in the foot, but possibly making a very good employee or partner unable to perform effectively. Fear has no place in leadership.
The way we influence people in a lasting way is by our own character, and our understanding and use of emotion. We can order someone to do something, which may be part of the workday; or we can employ them at the emotional level, so they become fully devoted to the projects and provide some of their own motivation. Today’s workplace is all about relationships as a human being as well as a worker. Everyone produces just a bit more for someone they like. Leaders understand the way things work. They know the paycheck is not the single most motivating factor in the work life of most people.
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