B2 stage. Undergraduate German majors use contemporary college German, and the theory of four volumes of contemporary college German can reach B2 level. The full name of the European standard is "European * * * same language reference standard (Der Gemeinsame europ? Ische referenzrahmen fü r Sprachen (ger) is a standard for language learners and language teachers to improve their language acquisition, language use and language ability. This standard was formulated in 200 1 year, including six levels: A 1 entry level, A2 primary level, B 1 intermediate level, B2 intermediate level, C 1 advanced level and C2 proficient level. The corresponding test is divided into four parts, namely reading comprehension, listening, writing and oral expression.