欧美色欧美亚洲高清在线观看,国产特黄特色a级在线视频,国产一区视频一区欧美,亚洲成a 人在线观看中文

  1. <ul id="fwlom"></ul>

    <object id="fwlom"></object>

    <span id="fwlom"></span><dfn id="fwlom"></dfn>

      <object id="fwlom"></object>

      GM food,good or bad(共五則范文)

      時間:2019-05-15 14:20:16下載本文作者:會員上傳
      簡介:寫寫幫文庫小編為你整理了多篇相關的《GM food,good or bad》,但愿對你工作學習有幫助,當然你在寫寫幫文庫還可以找到更多《GM food,good or bad》。

      第一篇:GM food,good or bad

      Genetically Modified Food, angel or devil?

      Genetically modified food means transfer the genes of some creatures into other species by using modern molecular biological technology, through reforming the genetic material of the creature, changing the shape, nutritional quality and quality to what people want them to.Genetically modified food is a kind of food using genetically modified organisms as direct food or raw material.The world's first genetically modified crop is a kind of tobacco containing antibiotics which derived in 1983, Until 10 years later, the first kind of genetically modified food appeared in USA, it is a kind of tomatoes that can delay the ripe.Today, the United States uses transgene technology more than any other countries, about 20 kinds of genetically crops have been approved, including corn, soybeans, potatoes and cotton.The advantage of genetically modified food is giving our life more convenient, obviously improve the quality of our life.What’s more, because of its high yield, it increases the possibility of solving the global hunger issues.But everything has two sides, some countries don’t think so.Some European countries such as Switzerland, Austria, their consumer groups oppose the sale of importing genetically modified food, they believe that genetically modified foods affect human health.In Europe, the government's attitude is, genetically modified food are insecurity, and need for science to prove their safety.Some social groups and organizations called for scientists to confirm the safety of genetically modified foods before the suspension of genetically modified crops.Currently, Transgenic technology is still in the primary stage of the study, most people insist that food cultivated by this technology is unnatural, it maybe poisonous, can bring allergic reaction problem and threaten to the environment.Objectively speaking, each new thing has its own growing process, We should use the objective critical and inclusive vision to treat them.With the development of technology, someday the scientist will tell us whether genetically modified food is angle or a devil.

      下載GM food,good or bad(共五則范文)word格式文檔
      下載GM food,good or bad(共五則范文).doc
      將本文檔下載到自己電腦,方便修改和收藏,請勿使用迅雷等下載。
      點此處下載文檔

      文檔為doc格式


      聲明:本文內(nèi)容由互聯(lián)網(wǎng)用戶自發(fā)貢獻自行上傳,本網(wǎng)站不擁有所有權,未作人工編輯處理,也不承擔相關法律責任。如果您發(fā)現(xiàn)有涉嫌版權的內(nèi)容,歡迎發(fā)送郵件至:645879355@qq.com 進行舉報,并提供相關證據(jù),工作人員會在5個工作日內(nèi)聯(lián)系你,一經(jīng)查實,本站將立刻刪除涉嫌侵權內(nèi)容。

      相關范文推薦