在科学研究和综合技术服务业从业人员中,大专以上教育程度者所占比例53.73%,高出全

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问题:

在科学研究和综合技术服务业从业人员中,大专以上教育程度者所占比例53.73%,高出全国各种行业从业人员同一指标50.85个百分点;高中教育程度者为28.69%,高出全国各种行业同一指标17.74个百分点;与1990年人口统计数据相似,在初中以下教育阶段,该行业从业人员平均教育程度均低于全国各种行业从业人员的相应指标:该行业初中教育程度者所占比例14.58%,低于全国各种行业同一指标21.73个百分点;小学教育程度者为2.67%,低于全国各种行业同一指标34.53个百分点,文盲0.31%,低于全国各种行业同一指标12.33个百分点。更我重要的是,接受过学前教育的人在将来能够更多地获得高文化水平。

请你用学前教育效益的相关原理分析上述案例。

考点:教育学学前教育学学前教育学题库
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计算:100-|-99|=______.

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按要求的方法解下列一元二次方程.
(1)x2-16=0(直接开平方法)
(2)x2-4x-12=0(配方法)
(3)3(x-1)+2(x2-1)=0(因式分解法)
(4)2x2-4x-1=0(公式法)
(5)x2+3=2
3
x
(你喜欢的方法)
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根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

No fight can end, and no friendship can move on, until everyone says these little words: I’m sorry. Sometimes, though, they can be difficult to say. __小题1:

It’s not about winning.

Friendships aren’t like the Super Bowl, and there should never be a winner and a loser. When you start fighting with a friend, it may feel important that you “win” the fight by proving you’re right and he is wrong, or by making him be the first to apologize.

In reality, you’ll BOTH LOSE if you let your fight ruin your friendship, and you will BOTH WIN if you find a way to heal it.

__小题2:__

You may have heard the expression “His pride stood in the way.” It is usual used to describe a person who is determined to be “right” that he lets an opportunity for happiness pass him by forever. __小题3:_ Remember: as time goes on, we usually forget who was right and who was wrong in a disagreement, and only remember the sadness of losing a friend.

Take the first step.

Are you sick of fighting? Do you think this fight is just not important enough to ruin your friendship?

小题4:__ You don’t have to take full responsibility(责任)for starting the fight, or even say that your feelings were wrong. But you should find something you did or said that’s worth apologizing for. Maybe you’re sorry that you let the fight go for so long, or that you overreacted(反应过度)to something your friend did. If you say you’re sorry, it’s like an invitation for your friend to do the same.___小题5:__

A.Then try to be the first to apologize.

B.Stop thinking about your pride.

C.It’s about taking some responsibility for the argument.

D.Don’t let this happen to a friendship you care about.E.  Here are some things to keep in mind.

F.  There are some special cases when you shouldn’t be the one to apologize first.

G.  Once you’ve both said it, you’ll both feel a million times better.

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在大处理量下,进料中碳二含量过高,容易造成脱乙烷塔超负荷运行,分离效果变差,导致()进入丙烯塔,造成丙烯质量不合格。

A、碳二

B、丙烷

C、正丁烷

D、异丁烯

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日间活动出发前,地陪至少应提前( )到达集合地。

A.10分钟

B.20分钟

C.30分钟

D.40分钟

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