[請益] TPO 22 閱讀Spartina和Meteorite

看板TOEFL_iBT (TOEFL_iBT托福)作者 (歡喜作,甘願受)時間14年前 (2012/04/06 21:45), 編輯推噓0(000)
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請問大家關於Spartina的最後一題 答案有包含第一個選項: Spartina is very well adapted to conditions in salt marshes, where it plays a valuable role in stabilizing them and making them highly productive marine habitats. 我不太懂是後半段所說"making them highly productive marine habitats." 在文章前段應該是由於high tide所造成的現象,為何是Spartina所有的特色? 再來是The Allende Meteorite裡面最後一題 答案裡有: "Except for being depleted in volatile elements, chondritic meteorites are probably very similar in composition to the matter from which planets were assembled." 可是回去原文的敘述,感覺只有和太陽相比的時候,才是缺乏Volatile elements 和一般行星比較之下: " they are truly lumps of nebular matter, probably similar in composition to the matter from which planets were assembled." 看來應該是去除了Volatile element之後才是和行星相像 希望能請大家解答 謝謝! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.112.4.181
文章代碼(AID): #1FVlEKbL (TOEFL_iBT)
文章代碼(AID): #1FVlEKbL (TOEFL_iBT)