单选题Lucy changed her major from physics to computer, _____.

单选题A)Inhissparetime.B)Inhisworktime.C)Inhisworkday.D)Inhissummer.

单选题Although it is the first time he takes up such a big task, never ______ afraid of difficulties.

单选题I think it's high time we ______ measures to protect the environment.

单选题You can't ______ him in his knowledge of physics. A. equal B. agree C. help D. match

单选题The professor of history is studying some major historical______. A. incidents B. accidents C. events D. elements

单选题The girl in red has played her part in the English speech competition.

单选题The Bedouin people think most highly of people who show loyalty. To them loyalty does not mean that one is devoted to a country, a place, or a leader. Loyalty means being faithful to one's family and tribe. The Bedouin take pride in their ancestors. They do not admire a hero from an ordinary or poor family as much as one who comes from an 'honored family. They particularly respect those who have inherited a good name and then have passed it on to their children. A man's position among the black-tent people depends upon his ancestors, relatives, and fellow tribesmen. If they are honored, he is also honored. If they are disgraced, he too is disgraced. Therefore one carefully guards the honor of his family, his lineage, and his tribe. A man can protect his family's honor by being brave and generous and by giving protection to those who ask for it. He also guards it by carefully watching the women of his family. A Bedouin woman cannot bring honor to her family, but she can bring disgrace- Even if a woman only looks as if she has done wrong, she may be killed. The honor of her family depends upon her virtue.

单选题The whole village ______ to welcome the visitors.

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单选题While offering first aid, the helper should ______.

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单选题But considered realistically, we had to face the fact that our prospects were less than good.

单选题The Library of Congress is America"s national library. It has millions of books and other objects. It has newspapers, popular publications and letters of historical interest. It also has maps, photographs, art prints, movies, sound recordings and musical instruments. Altogether, it has more than 100 million objects. The Library of Congress is open to the public Monday through Saturday, except for government holidays. Anyone may go there and read anything in the collection. But no one is permitted to take books out of the building. The Library of Congress was established in 1800. It started with 11 boxes of books in one room of the Capitol building. By 1814, the collection had increased to about 3,000 books. They were all destroyed that year when the Capitol was burned during America"s war with Britain. To help rebuild the library, Congress bought the books of President Thomas Jefferson. Mister Jefferson"s collection included 7,000 books in 7 languages. In 1897, the Library moved into its own building, across the street from the Capitol. Today, 3 buildings hold the library"s collection. The Library of Congress provides books and materials to the United States Congress. It also lends book to other American libraries, government agencies and foreign libraries. It buys some of its books and gets others as gifts. It also gets materials through its copyright office. Anyone who wants copyright protection for a publication in the United States must send 2 copies to the library. This means the Library of Congress receives almost everything that is published in the United States.

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单选题I_____ there only for one minute when the manager arrived at the station.

单选题A.Thetreewasbroken.B.Alltheleavesfelldown.C.Oneofthebranchesfelldown.D.Thetreewascutdown.

单选题A great many new buildings ______ last year. A. built B. were built C. has been built D. have built

单选题In the traditional marriage, the man worked at a job to earn money. Most men worked. Since the man earned the money, he paid the bills. The man made most of the decisions. He was the boss. In the traditional marriage, the woman seldom worked away from the house. She stayed at home to care for the children and her husband. She cooked meals, cleaned the house, washed the clothes and did other housework. In recent years, many couples continue to have a traditional relationship of the kind. The man has a job and earns the money for the family while the woman stays at home and cares for the children and the house. Many Americans are happy with this kind of marriage. But some other Americans have a different understanding of marriage and family responsibilities. There are two important differences in male and female roles now. One is that both men and women have many more choices. They may choose to marry or to stay single. They may choose to work or stay at home. Both men and women may choose roles that are comfortable for them. A second difference in male and female roles is that within marriage many decisions and responsibilities are shared. The husband and wife may choose to have children or they may not. If they have children, the man may take care of them some of the time, all of the time or not at all. The woman may want to stay at home and take care of the children. Or she may want to go to work. Men and women now decide these things together in a marriage. Many married people now share these decisions and the responsibilities of their families.

单选题All things{{U}} {{/U}}, the planned meeting will have to be put off.