题目

    Last Tuesday, after doing all the family shopping in town, I wanted to have a rest before catching the train. So I bought a newspaper and some chocolate and went into a station coffee shop with long tables to sit at. I put my heavy bag down on the floor, put the newspaper and chocolate on the table to keep a place, and went to get a cup of coffee.     When I came back with my coffee, there was someone sitting near to me. It was one of those strange-looking young men, with dark glasses, torn clothes, and long hair. But I wasn't surprised at such a young man. What surprised me （2009•青海）如图，一根电线杆的接线柱部分AB在阳光下的投影CD的长为1米，太阳光线与地面的夹角∠ACD=60°，则AB的长为（ ）A．米B．米C．米D．米