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最佳答案:1. the computer technology is widely applied, has had the huge influence to our
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最佳答案:With computer technology in the manufacture of a wide range of applications,part
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最佳答案:With the swift and violent development of the computer technology,the treatment
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最佳答案:D 其它说的有点道理
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最佳答案:Today, with the rapid development of computer technology, network technology mat
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最佳答案:解题思路:(1)根据含SiO296%的石英石的质量,计算出含二氧化硅的质量即可.(2)根据25t含SiO296%的石英石中SiO2的质量,由反应的化学方程式计算