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  • 542人已做

    650

    【句子改错SC】-8459-OG16

    Although a surge in retail sales have raised hopes that there is a recovery finally under way, many economists say that without a large amount of spending the recovery might not last.

  • 1504人已做

    650

    【句子改错SC】-8462-OG16

    Of all the vast tides of migration that have swept through history, maybe none is more concentrated as the wave that brought 12 million immigrants onto American shores in little more than three decades.

  • 1511人已做

    650

    【句子改错SC】-8464-OG16

    The intricate structure of the compound insect eye, having hundreds of miniature eyes called ommatidia, help explain why scientists have assumed that it evolved independently of the vertebrate eye.

  • 1368人已做

    650

    【句子改错SC】-8465-OG16

    In late 1997, the chambers inside the pyramid of the Pharaoh Menkaure at Giza were closed to visitors for cleaning and repair due to moisture exhaled by tourists, which raised its humidity to such levels so that salt from the stone was crystallizing and fungus was growing on the walls.

  • 1510人已做

    650

    【句子改错SC】-8466-OG16

    In 1979 lack of rain reduced India’s rice production to about 41 million tons, nearly 25 percent less than those of the 1978 harvest.

  • 1332人已做

    650

    【句子改错SC】-8471-OG16

    Rising inventories, when unaccompanied correspondingly by increases in sales, can lead to production cutbacks that would hamper economic growth.

  • 1213人已做

    650

    【句子改错SC】-8472-PREP07

    To meet the rapidly rising market demand for fish and seafood, suppliers are growing fish twice as fast as their natural growth rate, cutting their feed allotment by nearly half and raising them on special diets.

  • 775人已做

    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.

  • 710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...

  • 1463人已做

    650

    【句子改错SC】-8485-OG16

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

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  • 【句子改错SC】-8729

    The United States government employs a much larger proportion of women in trade negotiations than any government. &nb...

    1020人做过-1条评论-78.9%正确率

  • 【逻辑CR】-15275

    To improve the long-term savings rate of the citizens of Levaska, the country's legislature decided to implement a plan that allows investors to save up to $1,000 per year in specialaccounts witho...

    31人做过-1条评论-61.3%正确率

  • 【数据充分DS】-11639

    Six countries in a certain region sent a total of 75 representatives to an international congress, and no two&...

    182人做过-1条评论-63.2%正确率

  • 【句子改错SC】-8501

    The Achaemenid empire of Persia reached the Indus Valley in the fifth century B.C., bringing the Aramaic script&nbs...

    1462人做过-9条评论-44.1%正确率

  • 【句子改错SC】-10389

    Possible long-term consequences of the “greenhouse effect,” the gradual warming of the Earth’s climate, may include&nbs...

    431人做过-3条评论-44.8%正确率

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