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The only secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards.

I'm not a person, I'm a persona.

DNA的雙螺旋結(jié)構(gòu)是所有科學(xué)中最美麗和優(yōu)雅的結(jié)構(gòu)之一。