自学考试、水平考试、等级考试是目前国家级考试的三种形式,它们各有什么特点?所发证书有何不同?应试者应如何选择?本文或许能让您在徘徊中豁然开朗! Self-study exam, level test, level test is the current state-level examinations of the three forms, what are the characteristics of each? What is the difference between the certificate issued? Candidates should be how to choose? This article may allow you to lighten up in the hovering!