Since codfish are (i)______part of the marine ecosystem, their (ii)______would 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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