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In general,the most effective period for observing stars and planets occurs during the darker limit of().
A . sunset
B . civil twilight
C . nautical twilight
D . astronomical twilight
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在波分复用系统的工作频率中,绝对频率参考点(AFR)是下列哪一个:()
A . A、193.1THz
B . B、192.1THz
C . C、196.0THz
D . D、187.0THz
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在波分复用系统的工作频率中,绝对频率参考点(AFR)是下列哪一个?
A . 193.1THz
B . 192.1THz
C . 196.0THz
D . 187.0TH
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Generally speaking,the most favorable bottom for anchoring is().
A . Very soft mud
B . Rocky
C . A mixture of mud and clay
D . Loose sand
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1 What language do people in a Doha airport most probably speak, according to the news report?
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In most writing, your general aim should be to first advance a point and then _________ /that point.
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In the preliminary contests of “21 Century Cup” English Speaking Competition, the top 5 with the most online votes can advance to the next round directly.
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Most municipal bonds are revenue bonds rather than general obligation bonds.
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5. Some of the most thinkers, writers, artists, business people,teachers and other leaders drawn from different fields around the world will gather at this summer program-to teach, speak, lead, question, and answer.
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When you speak English, suppose you have a slight Chinese accent, it does not matter. The most important thing is that you’re supposed to speak clearly. ________________
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(general )_____speaking ,he is a person that you can trust .
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Comparatively speaking, who will make the most money in his life time according to the passage?
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Generally speaking, deduction is from general to specific, and it has strong power of proving, while induction is from specific to general, and it has a strong power of persuading.
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In general, ______ tend to be the most energy efficient one.
A.older laptops B.older desktops
C.newer desktops D.newer laptops
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If a scientist speaks for a product, what category of ads does it most likely belong to?
A.The first category.
B.The second category.
C.The third category.
D.Another the author failed to conclude.
此题为多项选择题。
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What is the most difficult thing for you in your listening and speaking class?
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(general)______speaking, table manners vary from culture to culture.
(general)______speaking, table manners vary from culture to culture.
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A. to speak B. for speaking C. to speaking D. to speaking of
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A study of art history might be a good way to learn more about a culture than is possible to learn in general history classes, Most【B1】history courses primarily concentrate on polities, economies, and war. But art history【B2】on much more than this【B3】art reflects not only the political【B4】of a people, but also religious beliefs, emotions, and psychology. In addition,【B5】about the daily activities of our【B6】or of people very different from our own can be provided by art, In short, art【B7】the essential qualities of a time and a place, and a study of it【B8】offers us a deeper understanding【B9】can be found in most history, books.
In history books,【B10】information about the political life of a country is【B11】; that is, facts about polities axe given,【B12】opinions are not expressed. Art, on the other hand, is【B13】, it reflects emotions and opinions. The great Spanish painter Francisco Goya was perhaps the first【B14】"political" artist. In his well-known painting The Third of May, 1080, he【B15】the Spanish government for its【B16】of power over people.
In the same way, art can【B17】a culture's religious beliefs. For hundreds of years in Europe, religious alt was almost the only【B18】of art that existed. Churches and other religious buildings were filled with paintings that【B19】people and stories from the Bible. By【B20】, one of the main characteristics of art in the Middle East was(and still is) its absence of human and animal images.
【B1】
A.usual
B.typical
C.average
D.popular
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Most scientists and engineers find careers in three general sectors of society: colleges and universities, industries, and federal and stale agencies. Their work includes an array of activities, from the conduct of basic and applied research to the design and application of new commercial products to the operation and maintenance of large engineering systems.
You can make your planning more effective by appreciating the direction in which professional careers are shifting within that larger picture.【66】But more than half the students who receive PhDs in science and engineering obtain work outside academe—a proportion that has increased steadily for 2 decades. And full-time academic positions in general are more difficult to find than they were during the 1960s and 1970s, when the research enterprise was expanding more rapidly.
【67】The end of the Cold War has removed some incentive for the federal government to fund defense-oriented basic research. Increased national and global competition has forced many industries to reduce expenses and staff. That means that there are fewer research and development positions in universities, industries, and government laboratories than there are qualified scientists and engineers looking for them.
【68】For example, there are strong public pressures for universities to shift their emphasis toward teaching and toward undergraduate education; the number of positions for permanent faculty has decreased; professors are no longer required to retire at a particular age; and more part-time and temporary faculty are being employed.【69】In engineering, careers are being transformed by several intersecting trends.【70】Companies value multilingual workers with a breadth of competencies—managerial as well as technical—and the ability to access and apply new scientific and technologic knowledge. The more flexible and mobile you can be, the more opportunities you will have and the greater will be your control over the shape of your career.
A. Powerful changes have swept through the universities.
B. All those trends 'affect the universities' ability to hire scientists and engineers.
C. For example, increasing numbers of physicists, mathematicians, and engineers find their skills valued in the financial arena.
D. International companies now draw employees from many nations, seeking out valued experts from a global pool of labor to work project by project.
E. For example, for many students, a PhD will mean a career as an academic researcher.
F. As our society changes, so too do the opportunities for careers in science and engineering.
(66)
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A study of art history might be a good way to learn more about a culture than that is possible to learn in general history classes. Most (1)_____ history courses concentrate on politics, economics, and war. (2)_____, art history (3)_____ on much more than this because art reflects not only the political values of a people, but also religious (4)_____, emotions, and psychology. (5)_____, information about the daily activities of our own can be provided by art. In short, art expresses the (6)_____ qualities of a time and a place, and a study of it clearly offers us a deeper understanding than what can be found in most history books.
In history books, objective information about the political life of a country is (7)_____; that is, facts about political are given, but (8)_____ are not expressed. Art, on the other hand, is (9)_____: it reflects emotions and impressions. The great Spanish painter Francisco Goya severely criticized the Spanish government for its (10)_____ of power over people. Over a hundred years later, symbolic (11)_____ were used in Pablo Picasso's Guemica to express the (12)_____ of War. (13)_____, on another continent, the powerful paintings of Diego Rivera depicted these Mexican artists' concealed (14)_____ and sadness about social problems.
In the same way, art can (15)_____ a culture's religious beliefs. For hundreds of years in Europe, religious art was (16)_____ the only type of art that existed. Churches and other religious buildings were filled with paintings that depicted people and stories from the Bible. (17)_____ most people couldn't read, they could still understand biblical stories in the pictures on church walls. (18)_____, one of the main characteristics of art in the Middle East was (and still is) its (19)_____ of human and animal images. This reflects the Islamic belief that statues are (20)_____.
A.interesting
B.plausible
C.superior
D.typical
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______ speaking, boys like football more than girls. (general)
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Which of the following non-verbal behaviors is the most important in a presentation according to Anderson in the additional reading “Speaking up: 5 strategies to give an effective presentation”()
A.gesture
B.eye contact
C.posture
D.none of the above
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AFR109maintainFL2303minutesafter13AK()
A.until
B.to
C.with
D.at