Chemicals from our phone and TV screens are accumulating in the brains of endangered dolphins and porpoises. New research shows these "liquid crystal monomers" from e-waste can cross the blood-brain barrier and may disrupt DNA repair, highlighting the growing impact of electronics on marine life.

· · 来源：vip资讯

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optimizations is causing correctness or (negative) performance issues

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Жители Санкт-Петербурга устроили «крысогон»17:52

Алексей Гусев (Редактор отдела «Спорт»)

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The user will give a CNF in dimacs format.