The medical center couldn’t ______ which group the flu virus belonged to owing to the lack of more blood samples.

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问题 The medical center couldn’t ______ which group the flu virus belonged to owing to the lack of more blood samples.

选项 A、scan
B、discern
C、testify
D、disclose

答案B

解析 由于缺少足够的血样,医疗中心无法识别出这种流感病毒的类别。本题是考查动词的词义辨析。scan“细查,审察”;discern“识别,认出”;testify“提供证据,证明”;disclose“揭露,泄露”。
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