1、2、3、0这四个数字,组成最小的两位小数是______,最大的两位小数是__

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问题:

1、2、3、0这四个数字,组成最小的两位小数是______,最大的两位小数是______.

考点:小数的产生及意义小数的读法和写法
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催化还原CO2是解决温室效应及能源问题的重要手段之一。研究表明,在Cu/ZnO催化剂存在下,CO2和H2可发生两个平衡反应,分别生成CH3OH和CO。反应的热化学方程式如下:

CO2(g)+3H2(g)≒CH3OH(g)+H2O(g),ΔH1=-53.7kJ·mol-1,Ⅰ

CO2(g)+H2(g)≒CO(g)+H2O(g),ΔH2,Ⅱ

某实验室控制CO2和H2初始投料比为1:2.2,经过相同反应时间测得如下实验数据:

【备注】Cat.1:Cu/ZnO纳米棒;Cat.2:Cu/ZnO纳米片;甲醇选择性:转化的CO2中生成甲醛的百分比

已知:①CO和H2的标准燃烧热分别为-283.0kJ·mol-1和-285.8kJ·mol-1

②H2O(l)H2O(g),ΔH3=44.0kJ·mol-1

请回答(不考虑温度对ΔH的影响):

(1)反应Ⅰ的平衡常数表达式K=();反应Ⅱ的ΔH2=()kJ·mol-1

(2)有利于提高CO2转化为CH3OH平衡转化率的措施有()。

A.使用催化剂Cat.1

B.使用催化剂Cat.2

C.降低反应温度

D.投料比不变,增加反应物的额浓度

E.增大CO2和H2的初始投料比

(3)表中实验数据表明,在相同温度下不同的催化剂对CO2转化成CH3OH的选择性有显著的影响,其原因是()。

(4)在右图中分别画出Ⅰ在无催化剂、有Cat.1和由Cat.2三种情况下“反应过程-能量”示意图。

(5)研究证实,CO2也可在酸性水溶液中通过电解生成甲醇,则生成甲醇的反应发生在()极,该电极反应式是()。

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SolidWork是美国SolidWork公司的产品。

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与四大发明促进了欧洲封建主义向资本主义的转变—样,儒家思想也曾在欧洲资产阶级革命时代备受启蒙思想家的推崇,他们主要是挖掘和改造了儒家思想中的

A.富于人文精神的政治观

B.主张渐进改良的历史观

C.躬行有教无类的教育观

D.强调贵贱有序的阶级观

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In the following passage, there are 25 blanks representing words that are missing from the context. You are to put back in each of the blanks with the missing word. Write your answers on the ANSWER SHEET. The time for this section is 25 minutes.
Compared with the immediate practical responsibility of the scientist, the (1) of the artist must seem puny. The decision which faces (2) is not one of practical action: of course he will try to throw this (3) into the scale, and that weight, if he is a writer or (4) a painter of genius, may have its effect. For the novelist—in our society the only artist who has a mass audience and at the same time effective economic control of the means of addressing (5) —the hope of some decisive influence is a reasonable (6) . For him, since he takes of all artists (7) is probably the largest portion of his culture as material, there is no (8) escape from the necessity for treating the content of his work seriously than (9) is for the social psychologist he is coming so closely to resemble. The dichotomy which people have tried to establish between artistic proficiency and (10) content is becoming unbearable to almost all sensitive minds. I doubt if it has ever been real— we might have admired Shelley as (11) if he had been indifferent to such things as war and tyranny, though I doubt it; certainly (12) he been indifferent we should never have been led by (13) .
There is no Hippocratic oath in literature, and I am not attempting to draw (14) up. As far as I am concerned, the artist is a human being writ large and his (15) are the ethics of any human being. Perhaps I can best illustrate (16) seems to me the new (17) of those duties of assertion and refusal from one writer, and I do not (18) it is without significance that this (19) projects the whole situation of choice into a scientific parable, the (20) of a pestilence: a (21) many human (22) are called to fight against, called not by any supernatural (23) but by the simple fact that the fight against a plague is (24) like a biological human (25) .

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公民甲由于最近身体不适,无法前往某行政机关办理某行业从业资格申请,于是通过挂号信的方式提出申请。如果申请的材料齐全、符合法定形式,该行政机关应当受理。

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