判断题

汽轮机是把蒸汽的热能转换为旋转机械能的热力设备。
正确
错误

答案：正确

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多项选择题

水能资源相对煤、石油等其它能源的优点主要有
A、成本低廉
B、调峰灵活
C、有综合利用价值
D、能源洁净

单项选择题

Which two English poets are responsible for the collection known as theLyrical Ballads?
A、William Wordsworth and Robert Southey
B、Robert Burns and William Blake
C、William Wordsworth and Samuel Tayler Coleridge
D、Robert Southey and Walter Scott