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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.

  • 1279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.

  • 1178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.

  • 1030人已做

    600

    【句子改错SC】-8469-OG16

    Carnivorous mammals can endure what would otherwise be lethal levels of body heat because they have a heat-exchange network which kept the brain from getting too hot.

  • 1248人已做

    600

    【句子改错SC】-8474-OG16

    Many experts regarded the large increase in credit card borrowing in March not as a sign that households were pressed for cash and forced to borrow, rather a sign of confidence by households that they could safely handle new debt.

  • 1199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.

  • 758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.

  • 1069人已做

    600

    【句子改错SC】-8489-OG16

    As contrasted with the honeybee, the yellow jacket can sting repeatedly without dying and carries a potent venom that can cause intense pain.

  • 1163人已做

    650

    【句子改错SC】-8492-OG16

    None of the attempts to specify the causes of crime explains why most of the people exposed to the alleged causes do not commit crimes and, conversely, why so many of those not so exposed have.

  • 773人已做

    600

    【句子改错SC】-8503-PREP07

    Ancient hunter-gatherers developed instincts that stigmatized selfishness, and voluntary cooperation was encouraged as well, whether it be within the group or also with outsiders.

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  • 【逻辑CR】-10342

    A prominent investor who holds a large stake in the Burton Tool Company has recently claimed that the company&...

    320人做过-5条评论-47.2%正确率

  • 【问题求解PS】-9381

    For any positive integer n, the sum of the first n positive integers equals n(n+1)/2 . What is the sum&nb...

    222人做过-2条评论-72.5%正确率

  • 【问题求解PS】-12423

    A certain law firm consists of 4 senior partners and 6 junior partners.  How many different groups of 3&n...

    82人做过-3条评论-67.1%正确率

  • 【句子改错SC】-8556

    Rivaling the pyramids of Egypt or even the ancient cities of the Maya as an achievement, the army of terr...

    745人做过-2条评论-66.7%正确率

  • 【句子改错SC】-8475

    A surge in new home sales and a drop in weekly unemployment claims suggest that the economy might not be&...

    1136人做过-2条评论-70.6%正确率

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