单项选择题
The first real "card" issued by Diners Club in 1950 could be used in many various places.（）
A. Right B. Wrong C. Not Mentioned
单项选择题 The first credit card was issued just before World War Ⅰ.（）
填空题 (2) should be filled in （）
填空题 (1) should be filled in （）
