记者在村子主干道旁边一处院墙上看到“专业打水井”的喷漆广告，便以打井为名，拨通了广告上的电话。
Москвичей предупредили о резком похолодании09:45
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While the potential for physical hazards in Antarctica is high, Precious says social dynamics can prove more problematic. When relationships break down, the fallout can be hard to rectify, and hard to control, he says.
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interpolating polynomial. This results in the Vandermonde matrix.
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