单选题No such weapons were used and {{U}}none been{{/U}} found.

单选题In Hong Kong, doctors reported that, for unclear reasons, 12 recovered SARS patients had ________weeks after they had been discharged — spurring fears that people might be infectious even after they''d left isolation.

单选题Marketing is ______ just distributing goods from the manufacturer to the final customer.

单选题Icy roads and poor visibility are familiar {{U}}hazards{{/U}} in the midwest.

单选题Her type of woman can {{U}}cope with{{/U}} life much more easily.

单选题Such legal entities provide the means for international cooperation and support of macroprojects related to the moon and mars that encourage global private sector participation. A. existences B. vitalities C. persistences D. complicities

单选题I urged all the students to take the initiative in their own hands to determine their goals for further pursuit rather than to depend on their teachers and their parents.

单选题When an organism is completely encapsulated and preserved, it becomes a fossil, therefore turning into evidence of things that once lived.

单选题Phytoplankton are the source of which color pigment?

单选题The council has to adapt its administrative procedures, its procurement rules and its intellectual property ______ to be compatible with such a partnership approach.

单选题Characteristics of Op Art are the carefully ______ hues and geometric patterns that create optical illusions.

单选题Many women prefer to use cosmetics to enhance their beauty and make them look younger.

单选题Legislation, Lawsuits Cover Both Sides on Same-sex Marriage 法律，在同性婚姻问题上诉讼两边不得罪 In courtrooms and state capitols nationwide, opponents and supporters of gay marriage have embarked on a collision course, pursuing lawsuits and legislation so deeply at odds that prolonged legal chaos is likely. One plausible result:a nation divided, at least briefly, between a handful of states recognizing gay marriage and a majority which do not. The most clear-cut option for averting such chaos is a federal constitutional amendment banning gay marriage. However, despite support from President Bush, the amendment is given little chance of winning the needed two-thirds support in both the House and Senate this year. Without it, experts say, the rival sides are likely to litigate so relentlessly that the US Supreme Court will eventually be compelled to intercede and clarify whether a legal same-sex union in one state must be recognized in other states. "It's going to be complicated for many years—we're going to have some free-marriages states, and some that are not," said Matt Foreman, executive director of the National Gay and Lesbian Task Force. "This is not a new situation in our country," Foreman addeD．"We have had a hodgepodge of laws on different social issues. Invariably, we come to widespread consensus, and that's going to happen to this issue. " For now, though, consensus seems distant as two contrasting legal offensives take shape. On one hand, courts in five relatively liberal states—California, New Jersey, New York, Oregon and Washington—are being asked to consider whether same-sex marriages should be alloweD． In each of these states, local officials have recently performed gay marriages. Gay-rights supporters predict the supreme courts in at least a couple of the states will join Massachusetts' Supreme Judicial Court in authorizing such marriages. Meanwhile, legislators in many states are moving to amend their constitutions to toughen existing bans on gay marriage and explicitly deny recognition to same-sex unions forged elsewhere. Four states—Alaska, Hawaii, Nebraska and Nevada—already have such constitutional amendments. Similar measures are either certain or likely to go before voters in several other states in November or thereafter, including Alabama, Arkansas, Mississippi, Utah and Wisconsin. In 10 other legislatures, proposed constitutional amendments are pending—their fate not yet certain. Matt Daniels, who as head of the Alliance for Marriage helped draft the proposed federal constitutional amendment, sees the developments in state,legislatures as proof of strong grass-roots opposition to gay marriage. "As the courts push the envelope, public opinion moves in our direction," he said, "It's a great national referendum...on whether we as a society are going to send a message through our laws that there's something uniquely special about marriage between a man and a woman. " However, Daniels is convinced that without an amendment putting that definition in the US Constitution, the courts will eventually strike down state down state laws banning gay marriage, as well as the federal Defense of Marriage Act. That measure, signed by President Clinton in 1996, allows states to refuse to honor same-sex unions performed elsewhere, and denies federal recognition to such unions. Daniels said the proposed federal amendment, if it did clear Congress, would easily win the required ratification by at least 38 state legislatures. He acknowledged that the measure may have difficulty getting two-thirds backing in the current Senate, where few Democrats support it. But he predicted that pressure on politicians to approve the amendment will increase, once gay couples married in Massachusetts or elsewhere successfully sue to have their marriage honored in other states. "When the lawsuits start to export what happens in Massachusetts, you will have a political powder keg for politicians who refuse to pay heed to public opinion," Daniels saiD．"This will change the political landscape. " William Reppy, a Duke University law professor, agreed that a challenge to the non- recognition of gay marriages across state lines will be critical—perhaps what ultimately decides the issue. "There will be a split of authority—one state court will say it's valid, another will say it isn't," Reppy predicteD．"Then the US Supreme Court would have their hand forced, and hear the case. They don't let splits of authority run rampant around the country for very long. /

单选题It was one of those days when it looked at first Usomething/U interesting could happen, but then later, when you didn't expect anything, almost everything happened.

单选题The decoration of the hall's______but it's not yet______with lamps.

单选题By the time of 1969, there were many space explorations. A. have been B. must be C. had been D. must have been

单选题Helen was so persistent that her husband ______ at last.

单选题Phyllis Wheatley is regarded as America"s first black poet. She was born in Senegal, Africa, about 1753 and brought to America aboard a slave ship at about the age of seven. John and Susannah Wheatley bought her for three pounds at a slave auction in Boston in 1761 to be a personal servant of Mrs. Wheatley. The family had three other slaves, and all were treated with respect . Phyllis was soon accepted as one of the family, which included being raised and educated with the Wheatley"s twin 15-year-old children, Mary and Nathaniel. At that time, most females, even from better families, could not read and write, but Mary was probably one of the best educated young women in Boston. Mary wanted to become a teacher, and in fact, it was Mary who decided to take charge of Phyllis"s education. Phyllis soon displayed her remarkable talents. At the age of twelve she was reading the Greek and Latin classics and passages from the Bible . And eventually , Mrs. Wheatley decided Phyllis should become a Christian. At the age of thirteen Phyllis wrote her first poem. She became a Boston sensation after she wrote a poem on the death of the evangelical preacher George Whitfield in 1770. It became common practice in Boston to have "Mrs. Wheatley"s Phyllis" read poetry in polite society. Mary married in 1771, and Phyllis later moved to the country because of poor health, as a teacher and caretaker to a farmer"s three children. Mary had tried to interest publishers in Phyllis"s poems but once they heard she was a Negro they weren"t interested. Then in 1773 Phyllis went with Nathaniel, who was now a businessman, to London. It was thought that a sea voyage might improve her health. Thirty-nine of her poems were published in London as Poems on, Various Subjects, Religious and Moral . It was the first book published by a black American. In 1775 Phyllis wrote a poem extolling the accomplishments of George Washington and sent it to him. He responded by praising her talents and inviting her to visit his headquarters. After both of her benefactors died in 1777, and Mary died in 1778, Phyllis was freed as a slave. She married in 1778, moved away from Boston, and had three children. But after the unhappy marriage, she moved back to Boston, and died in poverty at the sage of thirty.

单选题Had I run out of gas, I {{U}}ought to have{{/U}} called the garage.

单选题Work is a very important part of life in the United States. When the early Protestant 81 came to this country, they brought the 82 that work was the way to God and heaven. This attitude, the Protestant work 83 , still 84 America today. Work is not only important for 85 benefits, the salary, but also for social and 86 needs, the 87 of doing something for the good of the society. Americans spend most of their lives working, 88 productive. For most Americans, their work 89 them: They are what they do. What happens, 90 , when a person can no longer work? Most Americans stop working at age sixty-five or seventy and retire. 91 work is such an important part of life in this culture, retirement can be very difficult. Retirees often feel that they are useless and 92 . Of course, some people are happy to retire; but leaving one"s job, 93 it is, is a difficult change, 94 for those who look forward to retiring. Many retirees do not know 95 to use their time or they feel lost without their jobs. Retirement can also bring 96 problems. Many people depend on Social Security checks every month. 97 their working years, employees 98 a certain percentage of their salaries to the government. Each employer 99 gives a certain percentage to the government. When people retire, they receive this money as 100 .