Studies of (i)______of turtles are sometimes (ii) ______by the fact that the sub

游客2024-01-10  21

问题 Studies of (i)______of turtles are sometimes (ii) ______by the fact that the subjects live so long that researchers retire before the studies can be completed.

选项

答案 A,F

解析 by the fact that表示同义重复,后文是对前文的解释。第一空与live so long(活得非常长)对应,因此应该填入一个表示“长寿”意味的词。longevity长寿,extinction灭绝,reproduction繁殖。答案选A。后文说研究还没完成,研究人员就退休了。说明长寿成了研究的“阻碍”。bolster支撑,belie与……相时立,hamper阻碍。答案选F。
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