单选题Every group of human beings has ______.

单选题What effect does confinement have on clever animals, according to the text?

单选题The catalogue may be had {{U}}for asking{{/U}}.

单选题More poles are needed to ______ the weight of the tent. A. retain B. sustain C. maintain D. obtain

单选题You are exposed to obtrusive ads that ______ seemingly from nowhere even when you are disconnected from the Net，and your personal information gathered and sent off without you being aware of it． A．size up B．dwindle away C．conjure up D．pop up

单选题The streets of the Dual Springs neighborhood, a migrant-worker hub in northern Beijing, are ______ . That's no surprise; more than 13,000 people have been quarantined in China's capital to halt the insidious spread of severe acute respiratory syndrome (SARS).

单选题Curt Carlson, the wealthiest man in Minnesota, owned a hotel and travel company with sales reaching in the neighborhood of $ 9 billion. A. precisely B. merely C. substantially D. approximately

单选题The book provides tips for Westerners who work in Japanese firms: get together outside the ofrice, find a mentor for support and refrain for practicing Japanese with colleagues on the job.

单选题The nuclear family ______ a self-contained, self-satisfying unit composed of father, mother and children. A. refers to B. defines C. describes D. devotes to

单选题 The field of medicine has always attracted its share of quacks and charlatans — disrepu-table women and men with little or no medical knowledge who promise quick cures at cheap prices. The reasons why quackery thrives even in modem times are easy to find. To begin with, pain seems to be a chronic human condition. A person whose body or mind "hurts" will often pay any amount of money for the promise of relief. Second, even the best medical treatment cannot cure all the ills that beset men and women. People who mistrust or dislike the truths that their physicians tell them often turn to more sympathetic ears. Many people lack the training necessary to evaluate medical claims. Given the choice between (a) a reputable physician who says a cure for cancer will be long, expensive and may not work at all, and (b) a salesperson who says that several bottles of a secret formula "snake oil" will cure not only cancer but tuberculosis as well, some individuals will opt for "snake oil". Many "snake oil" remedies are highly laced with alcohol or narcotic drugs. Anyone who drinks them may get so drunk or stoned that they drown their pains in the rising tide of pleasant intoxication. Little wonder that "snake oil" is a popular cure-all for minor aches and hurts! But let there be no misunderstandings. A very few "home remedies" actually work. However, most remedies sold by quacks are not only useless, but often can be harmful as well.

单选题Coming at the Town Hall, the Queen was welcomed by the Mayor. A. On reaching B. On arrival C. At arrival D. At reaching

单选题Successful learning is not a (n) ______ activity but consists of four distinct stages in a specific order.

单选题"Hook up" as in "hooked their TVs up" underlined in Paragraph 1 most probably means to ______.

单选题We should let more young parents and their children can enjoy scientific early education. A. provide more young parents and their children to enjoy early education B. provide more young parents and their children to enjoy early education and scientific C. provide young parents and their children enjoy more scientific early education D. provide young parents and their children with more early education services

单选题An international treaty signed several years ago bans trade in plants and animals of endangered species. A. forbids B. eliminates C. promotes D. protects

单选题The belief is the legendary lost continent of Atlantis may someday be found.

单选题These data will be of considerable use for identifying and analyzing environmental degradation, and than crafting workable solutions. A. / B. from C. with D. to

单选题The managers discussed the plan that they would like to see be carrying out next year.

单选题It is easy to see why many little girls prefer to ______ with the male role, but the girl who does find the male role more attractive is faced with a dilemma.

单选题Today, largely on the ______ of evidence, 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.