The gas that volatilizes as to the plant can cause cancer, still do not have clear conclusion at present.

至于植物挥发的气体会不会致癌，目前还没有明确的结论。

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Conclusion At present, the serum-containing medium for culture of CHO cells can not be completely replaced by serum-free serum.

结论目前无血清培养基尚不能完全取代含血清培养基用于培养CHO细胞。

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Conclusion at present health education and management of asthma is still weak. It is an important component element to raise asthma control rate.

结论：目前哮喘健康教育和管理工作还很薄弱，加强这方面的工作是提高哮喘控制率非常重要的环节。

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At each project's conclusion, the students present their findings to the companies that employ them.

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The conclusion seems to be that investors are not being paid well at present to take the incremental risk of high yield bonds over Treasuries.

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Such assertions may have been accurate as recently as earlier this decade, but at present, and increasingly in the next several years, this conclusion will appear to be guided more by an overconfidence in American capabilities than by pragmatic realism.

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