Today’s smart phones, more and more emphasis on the function of taking photos, flash is naturally essential. Many mobile phones are equipped with front and rear flash, which are used for lighting and light supplement in various photographing scenes. As a matter of fact, in addition to lighting up for taking photos, the flash lamp can also be used as a “fluorescent stick” in various parties or celebrations, which is very familiar to young people. < / P > < p > at the wedding ceremony, when the host asked all the guests to turn on the mobile phone flash, his octogenarian grandfather also took out his mobile phone and waved the lights with everyone. Seeing this picture, the netizen burst into tears. Continue ReadingAmerican companies begin to give up R & D: who should pay for corporate research?