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    600

    【句子改错SC】-8478-OG15

    Warning that computers in the United States are not secure, the National Academy of Sciences has urged the nation to revamp computer security procedures, institute new emergency response teams, creating a special nongovernment organization to take charge of computer security planning.

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    650

    【句子改错SC】-8479-PREP07

    Less than 35 years after the release of African honeybees outside Sao Paulo, Brazil, their descendants, popularly known as killer bees, had migrated as far north as southern Texas.

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    600

    【句子改错SC】-8480-OG15

    A pioneer journalist, Nellie Bly’s exploits included circling the globe faster than Jules Verne’s fictional Phileas Fogg.

  • 527人已做

    650

    【句子改错SC】-8481-PREP07

    Nikola Tesla, the inventor of alternating current, because he was excited with the prospects of harnessing Niagara Falls for producing electric power, he predicted in the mid-1890's that electricity generated at Niagara would one day power the streetcars of London and the streetlights of P...

  • 980人已做

    600

    【句子改错SC】-8482-OG15

    Retail sales rose 0.8 of 1 percent in August, intensifying expectations that personal spending in the July–September quarter more than doubled that of the 1.4 percent growth rate in personal spending for the previous quarter.

  • 660人已做

    600

    【句子改错SC】-8483-PREP07

    The airline company, following through on recent warnings that it might start reducing service, announced that it was eliminating jet service to nine cities, closing some unneeded operations, and it grounded twenty-two planes.

  • 883人已做

    600

    【句子改错SC】-8484-OG15

    The commission has directed advertisers to restrict the use of the word “natural” to foods that do not contain color or flavor additives, chemical preservatives, or nothing that has been synthesized.

  • 983人已做

    650

    【句子改错SC】-8485-OG15

    Plants are more efficient at acquiring carbon than are fungi, in the form of carbon dioxide, and converting it to energy-rich sugars.

  • 698人已做

    650

    【句子改错SC】-8486-PREP07

    The list of animals that exhibits a preference of either using the right or the left hand (i.e., claw, paw, or foot) has been expanded to include the lower vertebrates.

  • 891人已做

    650

    【句子改错SC】-8487-OG15

    The Iroquois were primarily planters, but supplementing their cultivation of maize, squash, and beans with fishing and hunting.

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最新被解答
  • 【阅读RC】-9923

    The author uses the term "admittedly" (see highlighted text) in order to indicate that

    240人做过-1条评论-52.9%正确率

  • 【数据充分DS】-14869

    What is the ratio of the average (arithmetic mean) height of students in class X to the average height of students in class Y?(1) The average height of the students in class X is 120 centimeters.(2) T...

    5人做过-1条评论-40%正确率

  • 【数据充分DS】-13165

    Is the measure of one of the interior angles of quadrilateral ABCD equal to 60 degrees?(1)   Two of the&n...

    100人做过-1条评论-46%正确率

  • 【句子改错SC】-8502

    Based on records from ancient Athens, each year young Athenian women collaborated to weave a new woolen robe t...

    897人做过-10条评论-56%正确率

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    Of the families in City X in 1994, 40 percent owned a personal computer.  The number of families in ...

    29人做过-1条评论-79.3%正确率

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