The back-tracking mechanism for test results, especially tests that are costly and valuable for the diagnosis of some malignant diseases, should be improved.

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• 6 Which obstacle is NOT mentioned?

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  AThe company directly manages the retailers.

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• 8Christine Lagarde also believes that China has helped to transform the global economy through transf

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• 9Christine Lagarde also believes that China has helped to transform the global economy through transf

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• 10Christine Lagarde also believes that China has helped to transform the global economy through transf

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  错

  点击查看答案进入在线练题题不想做，我帮你做