问题
问答题 简答题
中和塔的作用是什么？
答案
参考答案：由于乙炔气通过清净塔后，在除掉H2S及PH3过程中产生一定量的H2SO4及H3PO4，故配制稀碱液进行中和生成硫酸钠盐及磷酸钠盐。至此乙炔气净化完毕可向合成岗位提供合格的乙炔气。
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中和塔的作用是什么？
参考答案：由于乙炔气通过清净塔后，在除掉H2S及PH3过程中产生一定量的H2SO4及H3PO4，故配制稀碱液进行中和生成硫酸钠盐及磷酸钠盐。至此乙炔气净化完毕可向合成岗位提供合格的乙炔气。
At the age of 15，I paid my first visit to Disneyland in America. It wasn't the first time for me to be ___36___ . Like most English children I learned French ___37___school and I had often been to France，and I ___38___ speaking English to people who didn't understand ___39___ . So ___40____ I went to America，I was really looking forward to ____41___ a nice easy holiday without any ___42____problems. ___43___ wrong I was! The misunderstanding ___44___at the airport. I was looking for a ___45___ telephone to give my friend Danny a ___46____ and tell her that I had arrived. A___47___ old man saw me looking lost and asked ___48___ he could help me.“Yes，”I said，“I want to give my friend a ring.”“Well，that's nice，”he said，“Are you getting ____49____ ? But aren't you a bit young?” “ ___50___ is talking about marriage?” I replied. “I just want to call her to tell her I've arrived. Can you tell me ___51___ there’s a phone box?” “Oh!” he said, “there's a phone downstairs.” When at last we did meet up，Danny explained the misunderstanding to me. “Don't worry，”she said to me，“I had so many ___52___ at first. There are lots of words which the Americans ___53___ differently in meaning from us British. You'll soon get used to ___54___ funny things they say. Most of the ___55___, British and American people understand each other!”
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