第25题: [单项选择]{{B}}Passage One
Questions 26 to 29 are based on the passage you have just heard.{{/B}} A. To transport water to high places. B. To provide air conditioning. C. To fertilize the soil. D. To adjust the soil temperature. 参考答案:D 答案解析:[听力原文]
How were the pipes used in Hawaii
第28题: [单项选择]500（330）kV及以上母线正常运行方式时，最高运行电压不得超过系统额定电压的（）发电厂220kV母线和500（330）kV及以上变电站的中压侧母线正常运行方式时，电压允许偏差为系统额定电压的（）事故运行方式时为系统额定电压的（） A. 10%，0%到10%，-10%到10% B. 8%，0%至10%，-5%到10% C. 10%，0%到10%，-5%到10% D. 8%，0%到10%，-5%到15% 参考答案:C
