第13题: [单项选择]The author implies that ________. A. products are more expensive in the U.S. than anywhere else B. credit cards are often used illegally C. products very often do not perform as advertised D. most Americans like to buy what they cannot afford 参考答案:C 答案解析:[解析] 推断题。文章第一段最后一句中作者指出，Along with progress，too，have come some instances of manipulative advertising
