2. 外语
  3. Knowing the reward of______, NASA astronaut Ellen Ochoa encourages students to study hard if they wish to pursue career in scien

Knowing the reward of______, NASA astronaut Ellen Ochoa encourages students to study hard if they wish to pursue career in scien

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问题 Knowing the reward of______, NASA astronaut Ellen Ochoa encourages students to study hard if they wish to pursue career in science and engineering.
选项
答案C，E
解析 逗号表示同义重复。空格和study hard取同。generosity大方，serendipity意外，diligence勤奋，largesse大方，industry勤奋，merriment欢笑。答案选CE．
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