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  • 1269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.

  • 771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.

  • 682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.

  • 1241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.

  • 1209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.

  • 963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.

  • 952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.

  • 1146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.

  • 1075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...

  • 1085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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  • 【逻辑CR】-10054

    Electric utilities pay less for low-quality coal per ton delivered than for high-quality coal. Yet more low-quality coal than high-quality coal must be burned to generate the same amount of electricit...

    562人做过-1条评论-51.2%正确率

  • 【逻辑CR】-10441

    It is theoretically possible that bacteria developed on Mars early in its history and that some were carried t...

    185人做过-1条评论-67.6%正确率

  • 【句子改错SC】-10633

    The three women, liberal activists who strongly support legislation in favor of civil rights and environmental protectio...

    538人做过-1条评论-54.6%正确率

  • 【句子改错SC】-10703

    In Japan, a government advisory committee called for the breakup of Nippon Telephone and Telegraph Company, the lar...

    527人做过-3条评论-69.6%正确率

  • 【句子改错SC】-8851

    Even though it was not illegal for the bank to share its customers' personal and financial information with&nbs...

    403人做过-3条评论-55.8%正确率

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