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Description The Global Aerial Research Centre has been allotted the task of building the fifth generation of mobile phone nets in Sweden. The most str 阅读全文
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Description As the new term comes, the Ignatius Train Station is very busy nowadays. A lot of student want to get back to school by train(because the 阅读全文
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Description Suppose that we have a square city with straight streets. A map of a city is a square board with n rows and n columns, each representing a 阅读全文
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基础题：1000、1001、1004、1005、1008、1012、1013、1014、1017、1019、1021、1028、1029、1032、1037、1040、1048、1056、1058、1061、1070、1076、1089、1090、1091、1092、1093、1094、1095、1 阅读全文
摘要：
Description Suppose that we have a square city with straight streets. A map of a city is a square board with n rows and n columns, each representing a 阅读全文