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Google, the Internet search 【小题1】, will now offer a free operating system for personal computers. The 【小题2】hopes to loosen Microsoft’s hold on the market. Microsoft Windows is on more than 【小题3】 percent of PCs. Google is basing the new 【小题4】 on its Chrome Web browser and the Linux open-source operating system. The Google Chrome OS is expected to be available 【小题5】.
