中文字幕精品视频在线|中文字幕在线观看|亚洲v日本v欧美v在线播放|伊人网中文字幕

<nav id="3u6n6"></nav><samp id="3u6n6"><tr id="3u6n6"><track id="3u6n6"></track></tr></samp>
    <legend id="3u6n6"><fieldset id="3u6n6"></fieldset></legend>

      
      

    1. 首頁英語詞典wormworm考試真題

      worm

      英 [w??m] 美[w?m]
      • n. 蟲,蠕蟲;蝸桿;螺紋;小人物
      • vt. 使蠕動;給除蟲;使緩慢前進(jìn)
      • vi. 慢慢前進(jìn);蠕行
      • n. (Worm)人名;(德、丹、葡)沃爾姆

      考試真題


      But she expects using the chemical in some kind of industrial process-not simply "millions of worms thrown on top of the plastic".

      2018年高考英語北京卷 閱讀理解 閱讀C 原文

      Is it an enzyme produced by the worm itself or by its gut microbes?

      2018年高考英語北京卷 閱讀理解 閱讀C 原文

      Jennifer Debruyn, a microbiologist at the university of tennessee, who was not involved in the study, says it is not surprising that such worms can break down polyethylene.

      2018年高考英語北京卷 閱讀理解 閱讀C 原文

      Researchers in spain and england recently found that the worms of the greater wax moth can break down polyethylene, which accounts for 40% of plastics.

      2018年高考英語北京卷 閱讀理解 閱讀C 原文

      So far there is no effective way to get rid of it, but a new study suggests an answer may lie in the stomachs of some hungry worms.

      2018年高考英語北京卷 閱讀理解 閱讀C 原文

      The team left 100 wax worms on a commercial polyethylene shopping bag for 12 hours, and the worms consumed and broke down about 92 milligrams, or almost 3% of it.

      2018年高考英語北京卷 閱讀理解 閱讀C 原文

      To confirm that the worms' chewing alone was not responsible for the polyethylene breakdown, the researchers made some worms into paste and applied it to plastic films.

      2018年高考英語北京卷 閱讀理解 閱讀C 原文