题目

    In 1945, a 12-year-old boy saw something in a shop window that set his heart racing. But the price-five dollars-was far beyond Reuben Earle's means. Five dollars would buy almost a week's groceries for his family.     Reuben couldn't ask his father for the money. Everything his father made through fishing went to her mother, Dora, who struggled to feed and clothe their five children.     Nevertheless, he opened the shop's weathered door and went inside. Standing proud and straight in his flour-sack shirt and washed-out trousers, he told the shopkeeper what he wanted, addi（4分）下图中游标卡尺和螺旋测微器的读数分别为 mm和 mm。