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In the vacuum of space, the amount of debris—spent rocket stages, splintered satellites, micrometeoroids—numbers in the millions, all zooming about, often at 17,000 mph speeds. They’re also constantly hitting each other in a tsuris of exponential littering. Most of these pieces are tiny, and many are not anywhere near the altitude of the ISS. But the area isn’t completely clean.，更多细节参见WPS官方版本下载
测试题目：一道经典的博弈论逻辑陷阱题。。heLLoword翻译官方下载对此有专业解读
Northern Ireland's largest provider of natural gas, SSE Airtricity, is to cut its prices by 8.10% from 1 April for its 215,000 domestic and small business customers.
陳俊宏直言，即便現在的課綱已納入二二八和白色恐怖議題，但在實際教學現場，許多教師因為擔心被貼上政治標籤或遭家長投訴，會以「教育中立」的立場來處理相關教學問題。