Conclusion: The sunspot has a certain influence upon hepatitis incidence.
结论：太阳黑子对肝炎发生率有一定的影响。
This subject has a certain influence in the country, and reaches the lead position in domestic level in some areas.
该学科在国内有一定影响，在某些研究领域内达到国内领先水平。
This subject has a certain influence in the country, and reaches the lead position in domestic level in some areas.
该学科在国内有一定影响，在某些研究领域内达到国内领先水平。
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