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[主观题]

According to the measures to improve the safety of traffic, we can know ______.A．competiti

According to the measures to improve the safety of traffic, we can know ______.

A．competition criteria must be made to match the injury statistics

B．person who gets the award of "Oscar" is the model for other drivers

C．the campaign must be spread to everyone all over the country

D．one journalist will get the "Oscar" this year if he gives the best opinion

提问人：网友csgogogo 发布时间：2022-01-07

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第1题

According to the passage, what does the word "bravado" （Paragraph 2, Line 5) probably mea

According to the passage, what does the word "bravado" (Paragraph 2, Line 5) probably mean？

A．obvious dishonesty

B．personal integrity

C．false bravery

D．good expectation

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第2题

According to the passage, "to move as much of these goods as possible"（Line 3, Para.l} mea

According to the passage, "to move as much of these goods as possible"(Line 3, Para.l} means________.

A.to redesign these goods for large-scale production

B.to transport goods as efficiently as possible

C.to sell the largest possible amount of goods

D.to dispose of these goods in large quantities

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第3题

一乙醇胺法（MEA）Monoethanolamine method （MEA)：（）

A、吸收剂—15～25％(wt)的一乙醇胺水溶液。溶液的浓度通常根据腐蚀性和操作经验来选择。Absorbent - 15-25% (wt) monoethanolamine solution. The concentration of solution is usually chosen according to corrosiveness and operating experience.

B、脱酸气情况：特点为化学吸收过程，受压力影响小，当压力在3～7kg/cm2仍能达到管输天然气要求。Deacidification gas: it is characterized by chemical absorption process and is less affected by pressure. When the pressure is 3 ~ 7kg/cm2, it can still meet the requirements of pipeline natural gas transportation.

C、缺点：蒸气压高，挥发性强，腐蚀性强。Disadvantages: high vapor pressure, strong volatility, strong corrosion.

D、应用：此法常用于脱硫，应用广泛。Application: this method is widely used in desulfurization.

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第4题

砜胺法（Sulfinol）——混合溶剂吸收法Sulfinol - mixed solvent absorption method（）

A、吸收剂——环丁砜和二异丙醇胺水溶液。与MEA法工艺流程相似。Absorbents - sulfoxide and diisopropanolamine solution. Similar to MEA process.

B、兼有化学吸收和物理吸收两种性能的混合溶剂。胺采用二异丙醇胺，对酸性气为化学吸收；砜采用环丁砜，对酸性气为物理吸收。A mixed solvent with both chemical and physical absorption properties. The amine USES diisopropanolamine, which is chemically absorbed by acid gas. Sulfoxide adopts sulfoxide, which is physically absorbed by acidic gas.

C、当气体中酸性气分压低时，主要为化学吸收，随酸性气分压提高，物理吸收加强。根据酸性气分压的不同，配制胺、砜和水比例不同的吸收剂，相当于把醇胺溶液中的水换为砜。由于环丁砜对酸性气吸收能力很强（远高于水），故其吸收能力远较其它吸收方法强。When the acid gas fraction in the gas is reduced, it is mainly chemical absorption, with the increase of acid gas partial pressure, physical absorption is strengthened. According to the different acidic gas partial pressure, the preparation of amine, sulfone and water ratio of different absorbent, equivalent to the alcohol amine solution of water for sulfone. Because sulfoxide has a strong absorption ability to acid gas (much higher than water), its absorption ability is much stronger than other absorption methods.

D、以上都不对

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第5题

吸收剂MDEA和MEA、DEA相比有何优越性？

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第6题

下列溶剂中（）最易起泡。

A.MEA

B. DEA

C. DIPA

D. MDEA

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