2. 外语
  3. Since codfish are (i)______part of the marine ecosystem, their (ii)______would adversely affect the animals who depend on them a

Since codfish are (i)______part of the marine ecosystem, their (ii)______would adversely affect the animals who depend on them a

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问题 Since codfish are (i)______part of the marine ecosystem, their (ii)______would adversely affect the animals who depend on them as a source of food.
选项
答案B，F
解析 Since说明前后同义重复。第二空与adversely affect(负面影响)对应；第一空充当逻辑关联。两空联动，若第一空填入逻辑正向的词，则第二空与adversely affect同义重复；反之，则第二空与adversely affect反义重复。negligible可以忽略的，integral不可缺少的，inexplicable难以解释的；existence存在，proximity接近，extinction灭绝。答案选BF。
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