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    600

    【句子改错SC】-8458-OG16

    Manufacturers rate batteries in watt-hours; if they rate the watt-hour higher, the longer the battery can be expected to last.

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    600

    【句子改错SC】-8460-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.

  • 978人已做

    600

    【句子改错SC】-8461-OG16

    At the end of the 1930s, Duke Ellington was looking for a composer to assist him-someone not only who could arrange music for his successful big band, but mirroring his eccentric writing style as well in order to finish the many pieces he had started but never completed.

  • 925人已做

    600

    【句子改错SC】-8463-OG16

    Diabetes, together with its serious complications, ranks as the nation’s third leading cause of death, surpassed only by heart disease and cancer.

  • 762人已做

    600

    【句子改错SC】-8467-OG16

    The widely accepted big bang theory holds that the universe began in an explosive instant ten to twenty billion years ago and has been expanding ever since.

  • 1057人已做

    600

    【句子改错SC】-8470-OG16

    There are several ways to build solid walls using just mud or clay, but the most extensively used method has been the forming of bricks out of mud or clay, and, after some preliminary air drying or sun drying, they are laid in the wall in mud mortar.

  • 1112人已做

    600

    【句子改错SC】-8475-OG16

    A surge in new home sales and a drop in weekly unemployment claims suggest that the economy might not be as weak as some analysts previously thought.

  • 882人已做

    600

    【句子改错SC】-8476-PREP07

    Organized in 1966 by the Fish and Wildlife Service, the Breeding Bird Survey uses annual roadside counts along established routes for monitoring of population changes of as many as, or of more than 250 bird species, including 180 songbirds.

  • 1108人已做

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    【句子改错SC】-8477-OG16

    Sunspots, vortices of gas associated with strong electromagnetic activity, are visible as dark spots on the surface of the Sun but have never been sighted on the Sun’s poles or equator.

  • 1198人已做

    600

    【句子改错SC】-8478-OG16

    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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  • 【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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