题目

Difficulties and hardships have ________ the best character of the young geologist.    A. brought in　　        B. brought up          C. brought out            D. brought about 答案：C 解析: bring in:逮捕，搜集；bring up:培养；bring out:产生某种品质；bring about:使……发生。本句意为：困难和困苦已经使那名年轻的地质学家形成了优秀的品格。故选C。

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