判断题

汽轮机负荷增加时，蒸汽流量增加，各级的焓降均增加。

答案：错误

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Direct trade refers to the business trade that happens between the manufacturing country and the consuming country without the involvement of the third country.

答案：正确

单项选择题

生物处理技术不能用于给水处理。
A、正确
B、错误