在中国古代的信仰中,“社”是土神,“稷”是谷神,但“社稷”却被用作国家的代称。这

题型:选择题

问题:

在中国古代的信仰中,“社”是土神,“稷”是谷神,但“社稷”却被用作国家的代称。这主要是因为[ ]

A.鬼神迷信思想盛行

B.中国古代以农业为立国之本

C.人们要依靠土地和谷物生存

D.国家的税收主要是土地上出产的谷物

考点:早期农业生产的出现
题型:选择题

A.

B.

C.

D.

题型:选择题

某简支梁弯矩图如下所示,其受力情况正确的是()。

 

 

A.

B.

C.

D.

题型:选择题

某市煤气公司液化气站的102号400m3液化石油气球罐发生破裂,大量液化石油气喷出,顺风向北扩散,遇明火发生燃烧,引起球罐爆炸。由于该球罐爆炸燃烧,大火烧了19个小时,致使5个400m3球罐,4个450m3卧罐和8000多只液化石油气瓶(其中空瓶3000多只)爆炸或烧毁,罐区相邻的厂房、建筑物、机动车及设备等被烧毁或受到不同程度的损坏,直接经济损失约627万元,死亡36人,重伤50人。在该球罐两年零两个月的使用期间内,球罐经常处于较低容量,只有3次达到额定容量,第三次封装后4天,即在18日破裂。该球罐自投用后,一直没有进行过检查,破裂前,安全阀正常,排污阀正常关闭。球罐的主体材质为15MnVR,内径9200 mm,壁厚25mm,容积400m3,用于贮存液化石油气。经检查发现以下原因:①根据断口特征和断裂力学的估算,该球罐的破裂是属于低应力的脆性断裂,主断裂源在上环焊缝的内壁焊趾上,长约65mm。②经宏观及无损检验,上、下环焊缝焊接质量很差,焊缝表面及内部存在很多咬边、错边、裂纹,熔合不良、夹渣及气孔等缺陷。③事故。发生前在上下环焊缝内壁焊趾的一些部位已存在纵向裂纹,这些裂纹与焊接缺陷(如咬边)有关。④球罐自投入使用后,从未进行检验,制造、安装中的先天性缺陷未及时发现和消除,使裂纹扩展。当球罐内压力稍有波动便造成低应力脆性断裂。

根据以上场景,回答下列问题:


1.液化气站存在那些危险危害因素
2.什么是应急预案,应急预案主要内容应包括哪几个方面
3.针对以上事故案例,分析避免同类事故发生的措施。
4.压力容器安全生产技术要求有哪些

题型:选择题

It’s easy to get the sense these days that you’ve stumbled into a party with some powerful drug that dramatically alters identity. The faces are familiar, but the words coming out of them aren’t. Something has happened to a lot of people you used to think you knew. They’ve changed into something like their own opposite.

There’s Bill Gates, who these days is spending less time earning money than giving it away--and pulling other billionaires into the deep end of global philanthropy(慈善事业) with him. There’s historian Francis Fukuyama, leading a whole gang of disaffected fellow travelers away from neoconservatism. To flip-flopis human. It can still sometimes be a political liability, evidence of a flaky disposition or rank opportunism. But there are circumstances in which not to reverse course seems almost pathological(病态的). He’s a model of consistency, Stephen Colbert said last year of George W. Bush:" He believes the same thing Wednesday that he believed on Monday -- no matter what happened on Tuesday."

Over the past three years, I found people who had pulled a big U-turn in their lives. Often the insight came in a forehead-smiting moment in the middle of the night: I’ve got it all wrong.

It looked at first like a sprinkling of outliers beyond the curve of normal human experience. But when you stepped back, a pattern emerged. What these personal turns had in common was the apprehension that we’re all connected. Everything leans on something, is both dependent and depended on.

"The difference between you and me," a visiting Chinese student told University of Michigan psychologist Richard Nisbett not long ago," is that I think the world is a circle, and you think it’s a line." The remark prompted the professor to write a book, The Geography of Thought, about the differences between the Western and the Asian mind.

To Western thinking, the world is linear; you can chop it up and analyze it, and we can all work on our little part of the project independently until it’s solved. The classically Eastern mind, according to Nisbett, sees things differently: the world isn’t a length of rope but a vast, closed chain, incomprehensibly complex and ever changing. When you look at life from this second perspective, some unlikely connections reveal themselves.

I realized this was what almost all the U-turns had in common: people had swung around to face East. They had stopped thinking in a line and started thinking in a circle. Morality was looking less like a set of rules and more like a story, one in which they were part of an ensemble cast, no longer the star.

The underlined word" flip-flop" (Line 4, Paragraph 2) most probably means ()

A. reverse

B.flick

C. handspring

D. fail

题型:选择题

下列有关滴眼剂质量要求,哪项与注射剂的要求不同()

A.有一定的pH值

B.有一定的渗透压

C.无菌

D.无热原

E.澄明度符合要求

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