The validity and reliability of BEC Vantage are the key factors to the success and failure of oral test. This paper evalu⁃ates the speaking test of BEC Vantage by analyzing the reliability, authenticity, validity and the assessment of the test.
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机译：Isolation and Antibiotic-Resistant Pattern of Opportunistic Infectious Microbes from the Infected Sites of Oral Cancer Patients Compared to That of Healthy People Oral Microbiota
