你即將離開本站

並前往https://www.nrc.gov/about-nrc/radiation/around-us/doses-daily-lives.html

Doses In Our Daily Lives | NRC.gov

Half of this dose comes from natural background radiation. Most of this background exposure comes from radon in the air, with smaller amounts from cosmic ...

確定！ 回上一頁

查詢 「Comes from」的人也找了：

  1. comes from用法
    2.
  2. come from用法
    3.
  3. come from中文
    4.
  4. come from同義
    5.
  5. Comes from
    6.
  6. Come from
    7.
  7. Come from Taiwan.
    8.
  8. Came from
    9.