流“多吃胡萝卜可以保护视力！”生活中总能听到“要多吃胡萝卜”的劝告，问其原因，就说胡萝卜可以保护视力。言流言分析这种说法很不严谨。胡萝卜里是含有和视力有关的营养元素，但这些营养元素只是维持眼睛的正常工作，而且这些营养元素在胡萝卜里的含量也不算非常优秀 ...

LOS ANGELES, July 5 (Xinhua) -- Protests took place across the United States on Friday as thousands of demonstrators took the opportunity of the Independence Day holiday to rally against President ...