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ENIAC是第一代现代计算机1，宾夕法尼亚州大学在1946年创造了它。这个机器非常的大，相当于一个大屋子的大小，同时也很沉。ENIAC有27000千克多重。它相当昂贵。此外，它也不容易使用。但是它在计算机史上是非常重要的。近几年来计算机变的越来越小，越来越便宜。首先，大的公司使用了电脑，接着，小型...

Why not take a holiday。=Why don]t you take a holiday。为什么不休个假呢。三。动词不定式作主语 不定式结构作主语时,现代英语倾向于采用it作形式主语,而把不定式结构后置的形式。参见本期本面《#小鬼it#它当家》中it作形式主语的用法。四。动词不定式作定语 不定式作定语,要放在它所修饰的名词或...

译成英语么？Mrs water counters: single-stage water Lian cabinets, hanging empty water line Lian counters, Multi-counter Lian water, environmental protection and water Lian cabinets, duplex-bit counters MRS water Spraying equipment: hand-painting line, manually clean the plastic coating, ...

In one's life, there are countless small things. They come to us, and then pass away. Some of these things, however, can affect one's life.When 贝律铭 was young, he saw a new 24-floor building was under construction along the Nanjing Road, Shanghai. How could that be ...

Spring Festival The Spring Festival is the most important festival for the Chinese people and is when all family members get together, just like Christmas in the West. All people living away from home go back, becoming the busiest time for transportation systems of about half a ...

现在：Dan Robinson has been worried all week now he is not worried anymore It is now being sent to his home by train 被动 过去：Last Tuesday he received a letter from the local police but he went to the station yesterday At the station he was told by a smiling policeman ...