a manager invests €5,000 annually in a security for four years at the prices shown in the following table. the average price paid for the security is closest to:
品职教育,以cfa、frm、cpa证书培训为主线业务,围绕着财经职业培训,拓展出金融行业相关的实务类课程,让坚持学习更容易
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