沉砂池有()、()、()以及钟式沉砂池等四种基本型式。

题型:填空题

问题:

沉砂池有()、()、()以及钟式沉砂池等四种基本型式。

考点:环境科学技术及资源科学技术水污染控制工程水污染控制工程题库
题型:填空题

双酚A (也称BPA)常用来生产防碎塑料聚碳酸酯。BPA的结构简式如下图所示。

(1)双酚A中的含氧官能团为______(填名称)。

(2)下列关于双酚A的叙述中,不正确的是______(填标号)。

A.遇FeCl3溶液变色

B.可以发生还原反应

C.1mol双酚A最多可与2molBr2反应

D.可与NaOH溶液反应

(3)双酚A的一种合成路线如下图所示:

①丙烯→A的反应类型是____________。

②B→C的化学方程式是__________________。

③D的结构简式是____________。

(4)双酚A制取聚碳酸酯的过程中需要用到碳酸二甲酯()。有机物W是碳酸二甲酯的同分异构体,W具有如下特征:

i.只含l个甲基

ii.能分别与乙酸、乙醇发生酯化反应

写出W与乙酸反应的化学方程式:________________________。

题型:填空题

某公司向日本出口一批冷藏蔬菜,报检时不需提供()。

A.合同、发票、装箱单

B.卫生注册证书号码

C.集装箱检验检疫结果单

D.出境货物运输包装性能结果单

题型:填空题

早期滑膜结核与类风湿性关节炎鉴别的可靠依据是

A.累及关节的数目

B.血沉是否正常

C.关节间隙是否狭窄

D.结核菌素试验

E.滑膜组织病理学检查

题型:填空题

地方法人金融机构连续续做两次常备借贷便利业务超过()次的,由人民银行上海总部、分行、营业管理部、省会(首府)城市中心支行、深圳市中心支行在续做当日书面报总行备案。

A、2

B、3

C、4

D、5

题型:填空题

In order to understand, however imperfectly, what is meant by "face", we must take (1) of the fact that, as a race, the Chinese have a ply (2) instinct. The theatre may almost be said to be the only national amusement, and the Chinese have for theatricals a (3) like that of the Englishman (4) athletics, or the Spaniard for bull-fights. Upon very slight provocation, any Chinese regards himself in the (5) of an actor in a drama. He throws himself into theatrical attitudes, performs the salaam, falls upon his knees, prostrates himself and strikes his head upon the earth, (6) circumstances which to an Occidental seem to make such actions superfluous, (7) to say ridiculous. A Chinese thinks in theatrical terms. When roused in self-defense he addresses two or three persons as if they were a multitude. He exclaims: "I say this in the presence of You, and You, and You, who are all here present. " If his troubles are adjusted he (8) of himself as having "got off the stage" with credit, and if they are not adjusted he finds no way to "retire from the stage". All this, (9) it clearly understood, has nothing to do with realities. The question is never of facts, but always of (10) . If a fine speech has been (11) at the proper time and in the proper way, the requirement of the play is met. We are not to go behind the scenes, for that would (12) all the plays in the world. Properly to execute acts like these in all the complex relations of life, is to have "face". To fail them, to ignore them, to be thwarted in the performance of them, this is to " (13) face". Once rightly apprehended, "face" will be found to be in itself a (14) to the combination lock of many of the most important characteristics of the Chinese.

It should be added that the principles which regulate "face" and its attainment are often wholly (15) the intellectual apprehension of the Occidental, who is constantly forgetting the theatrical element, and wandering (16) into the irrelevant regions of fact. To him it often seems that Chinese "face" is not unlike the South Sea Island taboo, a force of undeniable potency, but capricious, and not reducible to rule, deserving only to be abolished and replaced by common sense. At this point Chinese and Occidentals must agree to (17) , for they can never be brought to view the same things in the same light. In the adjustment of the incessant quarrels which distract every hamlet, it is necessary for the "peace-talkers" to take a careful account of the (18) of "face" as European statesmen once did of the balance of power. The object in such cases is not the execution of even-handed justice, which, even if theoretically desirable, seldom (19) to an Oriental as a possibility, but such an arrangement as will distribute to all concerned "face" in due proportions. The same principle often applies in the settlement of lawsuits, a very large percentage of which end in what may be called a (20) game.

16()

A.up

B.off

C.down

D.out

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