单选题Americans can rarely do their own thing quite as freely as they imagine. Rules and regulations ______ almost every feature of their lives.

单选题Following the publication of Hereditary Genius , Galton wrote other major works including English Men of Science, Natural Inheritance , and inquires into Human ______.

单选题Following a year of fast development, by the first quarter of this year, China has had about 1,100 e-commerce websites .

单选题Nuclear power, with all its inherent problems, is still the only option to guarantee enough energy in the future. A. solution B. policy C. choice D. reason

单选题One morning my patience was growing thin Uduring/U Mark talked once too often, and then I made a novice-teacher's mistake.

单选题The statesman was evidently ______ the journalist's questions and glared at him for a few seconds. A. put down B. put out C. put across D. put away

单选题It seems oil leaves from this pipe for some time. We'll have to take the machine apart to put it right.

单选题The present situation of people's abnormal behaviors speaks volumes for the fact that there is a a large number of people whose thinking is already out of ______. A. tear B. gear C. fear D. smear

单选题I have told my friend that if I had known he was in hot water, I would go and help him out. A. knew B. was knowing C. should know D. will know

单选题With most online recruitment services, job seekers must choose their words carefully; ______ the search engine will never make the correct match. A. therefore B. otherwise C. provided D. however

单选题Nearly everyone in Britain would like to own their own home and, whether they do or not, they are prepared to put time and money into decorating and furnishing it or even to making structural change to it.

单选题The Earth ______ three principal layers: the dense, iron-rich core, the mantle made of silicate rocks, and the thin, solid-surface crust.

单选题Construction of the gigantic office building in this city was for years intermittent. A. stopping and starting at intervals B. something that will happen soon C. being watched with keen interest D. anything that comes and goes

单选题Pirated compact disks and floppy disks remained the second biggest vehicle for the spread of computer viruses despite the governments' determined efforts to quash software piracy.

单选题The ocean bottom—a region nearly 2.5 times greater than the total land area of the Earth—is a vast frontier that even today is largely unexplored and uncharted. Until about a century ago, the deep-ocean floor was completely inaccessible , hidden beneath waters averaging over 3,600 meters deep. Totally without fight and subjected to intense pressures hundreds of times greater than at the Earth"s surface, the deep-ocean bottom is a hostile environment to humans, in some ways as forbidding and remote as the void of outer space . Although researchers have taken samples of deep-ocean rocks and sediments for over a century, the first detailed global investigation of the ocean bottom did not actually start until 1968, with the beginning of the National Science Foundation"s Deep Sea Drilling Project (DSDP). Using techniques first developed for the offshore oil and gas industry, the DSDP"s drill ship, the Glomar Challenger, was able to maintain a steady position on the ocean"s surface and drill in very deep waters, extracting samples of sediments and rock from the ocean floor. The Glomar Challenger completed 96 voyages in a 15-year research program that ended in November 1983. During this time, the vessel logged 600,000 kilometers and took almost 20,000 core samples of seabed sediments and rocks at 624 drilling sites around the world. The Glomar Challenger"s core samples have allowed geologists to reconstruct what the planet looked like hundreds of millions of years ago and to calculate what it will probably look like millions of years in the future. Today, largely on the strength of evidence gathered during the Glomar Challenger"s voyages, nearly all earth scientists agree on the theories of plate tectonics and continental drift that explain many of the geological processes that shape the Earth. The cores of sediment drilled by the Glomar Challenger have also yielded information critical to understanding the world"s past climates. Deep-ocean sediments provide a climatic record stretching back hundreds of millions of years, because they are largely isolated from the mechanical erosion and the intense chemical and biological activity that rapidly destroy much land-based evidence of past climates. This record has already provided insights into the patterns and causes of past climatic change-information that may be used to predict future climates.

单选题As an English major student , I think business English is more practical than other fields.

单选题Although "naming rights" have proliferated in American higher education for the past several decades, the phenomenon has recently expanded to extraordinary lengths. Anything to get an extra dollar out of donors is fair game. I know colleges and universities sorely need to raise funds in these times of fiscal constraints , but things have gotten a bit out of hand. Universities and colleges have long been named after donors-think of Harvard, Yale, Brown, and many others. John Harvard would hardly get a bench named after him today, given the modesty of his gift of books for the library back in the seventeenth century. Now it takes much more to get one"s name on a college. One institution, Rowan University of New Jersey, changed its name (from Glassboro State College) not long ago when a large donation was made. Buildings, too, have been affected. Traditionally, they were named after people such as distinguished scholars or visionary academic leaders; now they"re often named after big donors. Why is all of this happening now? The main motivation for the naming frenzy is, of course, to raise money. Donors love to see their names, or the names of their parents or other relatives, on buildings, schools, institutions, professorships, and the like. Increasingly, corporations and other businesses also seek to benefit from having their names on educational facilities. Today, no limits seem to exist on what can be named. If something does not have a name, it is up for grabs—a staircase, a pond, or a parking garage. Once all the major facilities have titles, lesser things go on the naming auction block. Colleges and universities, public and private, are all under increased pressure to raise money, and naming brings in cash. It is unproductive. Separate branding weakens the focus and mission of an institution and perhaps even its broader reputation. It confuses the public, including potential students, and feeds the idea that the twenty-first-century university is simply a confederation of independent entrepreneurial domains. The trends we see now in the United States, and perhaps tomorrow in other countries, will inevitably weaken the concept of the university as an institution that is devoted to the search for truth and the transmission of knowledge. All this naming distracts from the mission of an institution that has almost a millennium of history and cheapens its image. It is a sad symbol indeed of the commercialization and entrepreneurialism of the contemporary university.

单选题To be elected to the Senate a person must ______.

单选题Primitive superstitions that feed racism should be ______ through education.

单选题The early railroads were connected short lines in the existing arteries of transportation: roads, turnpikes, canals, and other waterways.