相关试题
【判断题】
[95]复水器的液位控制采用分程调节。
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[96]主蒸汽压力突降或中断会引起压缩机喘振。
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[97]闪点低于45℃的液体为易燃液体。
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[98]丙烯的爆炸极限为2.7%～36%。
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[99]干燥器中分子筛脱水过程为物理吸附过程。
【判断题】
[101]工业上脱水(深度干燥)的方法很多，有冷冻法、吸收法和吸附法。现在广泛采用、效果好的方法是用分子筛作为吸附剂的脱水法。
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[102]分子筛是人工合成的结晶性硅铝酸金属盐的多水化合物。
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[103]分子筛是一种离子型极性吸附剂，它
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[104]停开工喷射泵应先关抽汽阀，再关MS阀，切不可颠倒
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[105]液体的沸点与气压的关系很大，气压增大，沸点升高，气压减小，沸点降低。
【判断题】
[106]乙烯制冷压缩机紧急停车应遵循尽最大的可能保证机组不受损害的原则。
【判断题】
[107]如果因自身故障C-501停车，C-201也要立即停下来。
【判断题】
[108]如果因自身故障C-501停车，C-601也要立即停下来。
【判断题】
[109]调速油主要供给透平的调速机构、主汽阀、抽气止回阀。
【判断题】
[110]为了使压缩机充分暖机，开车前必须
【判断题】
[111]C-201润滑油压力低于160KPa引起辅助油泵自启。
【判断题】
[112]裂解气压缩机复水液面是分程控制的。
【判断题】
[113]乙烯制冷系统是也一个密闭的循环回路，采用蒸汽透平驱动的四段离心式压缩机。
【判断题】
[114]在元素周期表中，同一族的元素，从上到下，金属性增强，非金属性减弱。
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[115]催化剂只能改变反应达到平衡的时间，不能使平衡发生移动。
【判断题】
[116]催化剂将使平衡向正反应方向移动。
【判断题】
[117]在元素周期表中，同一周期元素，从左到右，金属性逐渐增强，非金属性逐渐减弱。
【判断题】
[118]如果物质的分子发生了变化，有新物质产生，这样的变化就是化学变化。
【判断题】
[119]在工厂中所称的“压力”，实际上就是压强。
【判断题】
[120]离心泵的运行电流与输送量无关.
【判断题】
[121]换热器传热温差越大,换热能力也越大。
【判断题】
[122]氢含量越低的原料,其裂解性能越差。
【判断题】
[123]带支链的烷烃比直链烷烃难裂解。
【判断题】
[124]含有相同碳原子的二烯烃和炔烃互为同分异构体。
【判断题】
[125]气体只有在临界温度以下才能液化。
【判断题】
[126]物质能量低的状态较能量高的状态稳定。
【判断题】
[127]一般地，液体的粘度随温度的升高而降低。
【判断题】
[128]一般地，气体的粘度随温度的升高而增大。
【判断题】
[129]NaCl的溶解度随温度升高而明显增大。
【判断题】
[130]一般地，含有10个碳原子以上的烯烃在常温常压下是气体。
【判断题】
[131]润滑油三级过滤中第三级过滤网规格为80目。
【判断题】
[132]催化剂在反应过程中少量反应。
【判断题】
[133]催化剂在反应前后质量保持不变。
【判断题】
[134]微分时间越长，微分作用越弱。
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【单选题】
British Cabinet works on the principle of .
A. A. collective responsibility
B. B. individual responsibility
C. C. defending the collectivism
D. D. defending the individuals
【单选题】
The main duty of the British Privy Council is to .
A. A. make decisions
B. B. give advice
C. C. pass bills
D. D. supervise the Cabinet
【单选题】
is the first African-American winner of the Nobel Prize for Literature.
A. A.Ralph Ellison
B. B. Tony Morrison
C. C. Richard Wright
D. D. James Baldwin
【单选题】
Of the following writers, is Not a Nobel Prize winner.
A. A. Alice Walker
B. B. Ernest Hemingway
C. C. William Faulkner
D. D. Eugene O’Neil
【单选题】
Of the following books, is NOT written by Ernest Hemingway.
A. A. The Sun Also Rises
B. B. The Sound and the Fury
C. C. A Farewell to Arms
D. D. For Whom the Bell Tolls
【单选题】
F. Scott Fitzgerald’s finest novel is , and its theme is about
A. A. The Great Gatsby, the American Dream
B. B. Tender is the Night, love
C. C. Tales of the Jazz Age, the loss of oneself
D. D. The Beautiful and the Damned, the evil of human nature
【单选题】
Of the following writers, is NOT included in the group of naturalists.
A. A. Stephen Crane
B. B. Frank Norris
C. C. Theodore Dreiser
D. D. Herman Melville
【单选题】
Of the following, is NOT characteristic of Mark Twain’s works.
A. A. colloquial speech
B. B. a sense of humor
C. C. a realistic view
D. D. an idealistic view
【单选题】
Of the following, is considered Herman Melville’s masterpiece.
A. A. The Last of the Mohicans
B. B. The Legend of Sleepy Hollow
C. C. Moby Dick
D. D. Daisy Miller
【单选题】
Of the following, is NOT Nathaniel Hawthorne’s work.
A. A. The Scarlet Letter
B. B. The House of the Seven Gables
C. C. The Marble Faun
D. D. Nature
【单选题】
is regarded as “the father of American literature”.
A. A. James Fennimore Cooper
B. B. Ralph Waldo
C. C. Thomas Jefferson
D. D. Washington Irving
【单选题】
Of the following writers, are from the Colonial and Revolutionary Periods.
A. A. Benjamin Franklin & Edgar Ellen Poe
B. B. Edgar Ellen Poe & Jonathan Edwards
C. C. Benjamin Franklin & Jonathan Edwards
D. D. Edgar Ellen Poe & Washington Irving
【单选题】
The National Day of the United States falls on .
A. A. June 4th
B. B. July 4th
C. C. June 14th
D. D. July 14th
【单选题】
Of the following, is NOT among the three major radio and TV networks in America.
A. A. the National Broadcasting System (NBS)
B. B. the Public Broadcasting Service (PBS)
C. C. the Columbia Broadcasting System (CBS)
D. D. the American Broadcasting System (ABS)
【单选题】
is sold especially to the upper or upper-middle class and it has a reputation for its serious attitude and great bulk.
A. A. The Washington Post
B. B. The New York Times
C. C. Los Angeles Times
D. D. New York Daily News
【单选题】
Of the following universities, has NOT cultivated any American President yet.
A. A. Harvard University
B. B. Massachusetts Institute of Technology
C. C. Princeton University
D. D. Yale University
【单选题】
To get a bachelor’s degree, all undergraduate students are required to do the following except .
A. A. attending lectures and completing assignments
B. B. passing examinations
C. C. working for communities
D. D. earning a certain number of credits
【单选题】
Of the following, is NOT the responsibility of the board of trustees in U. S. institutions.
A. A. choosing the president
B. B. establishing policies for administrators and faculty
C. C. approving budget and other financial project
D. D. decide which student to enroll
【单选题】
Of the following, are NOT among the categories of American higher education.
A. A. universities and colleges
B. B. research institutions
C. C. technical institutions
D. D. community colleges
【单选题】
Higher education in the United States began with the founding of
A. A. Yale University
B. B. Harvard University
C. C. Princeton University
D. D. New York University
【单选题】
Of the following subjects, are NOT offered to elementary school students.
A. A. mathematics and languages
B. B. politics and business education
C. C. science and social studies
D. D. music and physical education
【单选题】
Formal education in the United States consists of , secondary and higher education.
A. A. kindergarten
B. B. public
C. C. elementary
D. D. private
【单选题】
At present, U. S. exports account for of the world’s total.
A. A. 10%
B. B. 15%
C. C. 20%
D. D. 25%
【单选题】
is not one of the three giants in American automobile industry.
A. A. Ford
B. B. General Motors
C. C. Chrysler
D. D. American Motors
【单选题】
The following statements are all true except .
A. A. Agribusinesses reflect the big, corporate nature of many farm enterprises.
B. B. Agribusinesses maintain a balanced trade pattern between agricultural imports and exports.
C. C. Agribusinesses range from one-family corporations to multinational firms.
D. D. Agribusinesses include a variety of farm businesses and structures.
【单选题】
About of American crops are for export.
A. A. half
B. B. one third
C. C. one fourth
D. D. one fifth
【单选题】
President Johnson tried to build a “Great Society” by introducing various programs like the following except .
A. A. Medicare
B. B. Food Stamps
C. C. Education Initiatives
D. D. Unemployment Pension
【单选题】
The following inventions took place during the “second indThe following inventions took place during the “second industrial revolution” except .
A. A. typewriter
B. B. telephone
C. C. electric light
D. D. refrigerator
【单选题】
The first National Bank of the United States was established with the urge of .
A. A. George Washington
B. B. Thomas Jefferson
C. C. Andrew Jackson
D. D. Alexander Hamilton
【单选题】
Chartered companies were NOT granted the by the British King or Queen.
A. A. political authority
B. B. economic rights
C. C. judicial authority
D. D. diplomatic authority
【单选题】
The modern American economy progressed from to , and eventually, to .
A. A. colonial economy, handcraft economy, industrial economy
B. B. farming economy, handcraft economy, industrial economy
C. C. colonial economy, farming economy, industrial economy
D. D. handcraft economy, farming economy, industrial economy
【单选题】
America produces a major portion of the world’s products in the following fields except .
A. A. machinery
B. B. automobiles
C. C. ore
D. D. chemicals
【单选题】
The President is directly voted into office by .
A. A. all citizens of America
B. B. the citizens over 18 years old
C. C. electors elected by the voters
D. D. the senators and representatives
【单选题】
The Supreme Court is composed of justices.
A. A. six
B. B. seven
C. C. eight
D. D. nine
【单选题】
The terms for a Senator and Representative are and years respectively.
A. A. two, four
B. B. two, three
C. C. two, six
D. D. six, two
【单选题】
According to the Constitution, a candidate for President must be .
A. A. at least 35 years old
B. B. at least a 14 years’ resident of the United States
C. C. born in America
D. D. all of the above
【单选题】
The following except are all powers of the President.
A. A. vetoing any bills passed by Congress
B. B. appointing federal judges when vacancies occur
C. C. making laws
D. D. issuing executive orders
【单选题】
All the following except cannot make legislative proposal.
A. A. the Senator
B. B. the Representative
C. C. the Secretary of State
D. D. the President
【单选题】
The following except are guaranteed in the Bill of Rights.
A. A. freedom of religion
B. B. the right to get into people’s house by police
C. C. freedom of speech and of press
D. D. the right to own one’s weapon if one wishes
【单选题】
The Bill of Rights .
A. A. defines the rights of Congress and the rights of the President
B. B. guarantees citizens of the United States specific individual rights and freedoms
C. C. is part of the Declaration of Independence
D. D. has no relationship with the Constitution
