听力原文：The credit card industry is only about 50 years olD.Some credit cards have offered real conveniencE.Those accepting credit cards include hospitals for open-heart surgery and the federal government for income taxes. Instead of saving for a washing machine or computer, some people merely charge them. They do not realize that it may cost them more to charge than to pay cash, Because of the easy access to credit, many Americans today are over their heads in debt.
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