Alphabet's second quarter showed the slowest growth in YouTube ad revenue since the company first began reporting those numbers in the ... ... <看更多>

But first, why do we get so riled up about these problems? People don't usually get into fistfights at the bar over arithmetic, but these math ... ... <看更多>

Math, even in its simplest form, can confuse the hell out of anyone, which is why this math problem is driving people crazy. ... <看更多>