如果每半個Million的車在那幾年之內死了1個駕駛人,那麽數字就是2,統計意義不大。
你讀讀原文吧。
如果每半個Million的車在那幾年之內死了1個駕駛人,那麽數字就是2,統計意義不大。
你讀讀原文吧。
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