单选题An unhappy childhood may have some negative effects on a person"s characters, however, they are not always ______.

单选题Passage 2

单选题Our low prices are written into our business idea as an essential condition for our success. Anyone can tell you that it is impossible to have a low price, good quality and good profitability if you don"t have low costs. So cost-consciousness has to permeate everything we do, almost to the point of "penny-pinching".

单选题Millions of kids around the world dream of becoming the next Bill Gates, the genius who made good(成功) by foreseeing the digital future and creating one of the world"s most successful companies around it. The Microsoft chairman seems to have gone beyond the software industry to become a cultural symbol that young minds find irresistible. But who is a hero to Bill Gates? Who does he look up to? In a column that he writes for The New York Times Special Features, Gates has identified individuals he respects and admires, "individuals who achieve something inspirational(有灵感的) or who possess extraordinary character." Of these, one name comes up more often than others: the late great Nobel prize-winning physicist Richard Feynman. Feynman was a hero because, as Gates put it, "he was incredibly inspirational. He was an independent thinker and gifted teacher who pushed himself to understand new things. I have enjoyed everything I"ve read about him and by him. I admired him deeply..." Feynman had become everyone"s favorite physicist. He captured the public imagination as no other physicists before him. The Feynman Lectures on Physics, a set of lectures Feynman gave to the students at Cahech, is now a classic. Feynman"s fame grew when he was appointed to a special commission in 1986 to investigate the Challenger shuttle explosion. His dramatic demonstration on television, in front of millions of viewers, of the loss of resiliency(弹性) in the O-ring at freezing temperature as a principal cause of the Challenger accident made him a national celebrity. Gates never met Feynman but it is fascinating to imagine a meeting between the two. Here is the wide-eyed pupil, wondering at the master"s capability with ideas and insights, wondering at the source of that magical genius that"s uniquely Feynman"s.

单选题The teachers in this kindergarten have a railing ______ here to prevent children from ______ down.

单选题______ regular training in nursing, the girl could hardly cope with the work at first.

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单选题As with most innovations, those who have less money and receive less education in American society have had much less access to the web.

单选题She said she liked dancing but was not in the ______ for it just then when it was so noisy in the hall.

单选题Please keep the numbered cards in ______; don"t mix them up.

单选题As a kid, Kacey Long would dream of becoming a professional woman. While studying human resources management successfully at university, Long decided to change her look. So, at 19, she decided to get her breasts enlarged, "I was all about doing anything I could to improve myself," she says. With that decision, Long joined thousands of young patients who are surgically altering their appearance each year. Teenagers even younger than Long are having breasts enlarged, noses and ears reshaped and skin changed. In 2003, almost 336,000 American teens 18 or younger had some kind of cosmetic surgery(整形美容) or procedure, a 50% increase over 2002. Patient-safety advisers believe that many of the teens having surgery are unnecessarily putting themselves at risk of injury or even death. Teens are at the greatest risk of making a decision they will regret as Long did. Long had her breasts enlarged to size D, felt sick and weak within months after the $4,500-cost plastic surgery, and had her breast fillings removed two years later. She is still suffering from the long, painful recoveries. "I wish I had never done it," says Long. She is just one of those thousands who are actually risking their future beauty by going under the knife when they are still growing.

单选题After a four-hour heated discussion, all the members in the jury came to the conclusion that the man was not ______ of murder.

单选题I can lend you the car ________ you return it within three days.

单选题They had to cut down a lot of trees to make ______ for farms.

单选题The next few days could be ______ for the peace negotiation.

单选题You can borrow any book ______ attracts you.

单选题The traveler was about to sit up ______ he saw a long, black snake moving slowly across his legs.

单选题Only when they ______ the importance of the plan, will they make up their minds to carry it out.

单选题Some researchers suggest that dreams serve no real purpose while ________ believe that dreaming is essential to emotional and physical well-being.