题目

    The Golden Gate Bridge in San Francisco, California is one of the world’s most beautiful bridges．It is also one of the most visited places in the world．More than 1800 hundred million vehicles have used the bridge since it opened more than 70 years ago．     The bridge was painted “International Orange” because that color went well with the natural surroundings．The color also is easier to see in the heavy fog that often covers the area．But the Golden Gate Bridge was not named for its orange color．It was named for the body of water that it crosses,the Golden G把20克奶粉溶解在80克水里，奶粉占奶水溶液的\frac{1}{4}．