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並前往https://environment.ec.europa.eu/strategy/biodiversity-strategy-2030_en

Biodiversity strategy for 2030

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查詢 「R not NA」的人也找了：

  1. Is NA in R
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  2. Find rows with na r
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  3. R replace value with na
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  4. R not in
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  5. Filter na rm
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  6. R NA numeric
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  7. R replace NA
    8.
  8. Missing values in object r
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