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湿空气的总压为101．3kPa，(1)试计算空气为40℃和相对湿度为φ=60％时的温度与焓；(2)已知湿空气中水蒸气分压为9．3kPa，求该空气在50℃时的相对湿度φ与湿度H。

A.3kPa，(1)试计算空气为40℃和相对湿度为φ=60％时的温度与焓；(2)已知湿空气中水蒸气分压为9．3kPa，求该空气在50℃时的相对湿度φ与湿度H。

【参考答案】

(1)H=0．0284kg水／kg干气；I=113．3kJ／kg(2)φ=0．754；H=0．0629kg水/kg干气......

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听力原文： The Royal College of Nursing has warned that too many UK nurses are being lured to work in Australia. Last year almost 5,000 nurses formally signaled an intention to find work in Australian hospitals.Howard Carton The RCN's head of policy conceded nurses were receiving attractive offers, but said the UK still needed the nurses it was training. He said: 'The Australians have stepped up their recruitment activity on the basis of what they believe is unemployment and downsizing in the UK.' The Australian recruitment agencies that I've spoken to since I've been here are making very attractive offers.'It's not just the starting salaries. The packages include air travel for nurses' families as well—relocation expenses, temporary accommodation and the promise that they'll support an application for permanent residency.' A couple of employers even offer a 'meet and greet' service at the airport with chauffeur-driven limousines, so the nurses are made to feel welcome as soon as their feet touch the ground.'We still believe there are nursing shortages in the UK both in the NHS and the private sector.'What is the main idea of the news item?A．UK has trained far more nurses than it needs.B．UK is facing unemployment and downsizing.C．UK is losing its nurses to Australia in employment.D．UK should encourage nurses to work in Australia.

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If I______them, I would not agree with any of his suggestions.A．amB．wasC．wereD．had been

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