2. 职称英语
  3. The biggest oil spill happened in 1989. [br] Scientists are studying and develop

The biggest oil spill happened in 1989. [br] Scientists are studying and develop

游客2023-08-02  55
问题 The biggest oil spill happened in 1989. [br] Scientists are studying and developing solar power, wind power, and hydroelectric______to replace oil.
选项
答案 technologies
解析 在文章最后一段，作者提到了科学家们正在研究和开发太阳能、风能以及水电来替代石油。
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