A set of strains with stable pathogenicity by screening from the strains tested were selected.

还从供试菌株中筛选出一套具有稳定致病力的鉴别菌株。

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The results showed that olive had antimicrobial activity on all the strains tested, and flavonoids might be an important composition for this function.

结果表明，橄榄对所试菌株有较为明显的抑制作用，黄酮类物质及没食子酸可能是其抑菌防腐的主要药效成分。

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Using genetic probes, researchers at the University of New South Wales tested cancerous breast cells and found several strains of HPVs known to have a high risk of initiating cancer of the cervix.

新南威尔士大学研究人员使用遗传学探针检测了乳腺癌细胞，发现了一些对宫颈癌发生具有高危险性的HPV亚型。

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The group remains quarantined at home, and Health Minister Tony Ryall said 10 students tested positive for influenza A -- the general category of strains that includes the H1N1 swine flu.

CNN: U.S. prepares for possible swine flu epidemic as global cases rise

No country currently permits the commercial production of modified wheat, although agribusiness companies have developed strains that have been field tested.

WSJ: Asian Buyers Shun U.S. Wheat