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It looks like a simple math sum but has left people scratching their heads... can you solve it?
It looks simple at first, but this math problem has the internet stumped. Don't be fooled - it demands more brainpower than ...
Abstract: The reagent addition control level of the zinc first rougher has a significant impact on the quality of the zinc concentrate. As froth visual features are important indicators of working ...
WASHINGTON — DC Public Schools' math programs got a great addition to their budget on Thursday when an anonymous donor gave ...
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