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ＴｈｅＥｘｐｌｏｒａｔｉｏｎｏｆＵｎｉｖｅｒｓｉｔｙＴｅａｃｈｉｎｇＭａｔｅｒｉａｌＤｉｓｔｒｉｂｕｔｉｏｎＭｏｄｅ
LI 　Qiang, DU Zhong-Lin
HPMug2oMmNrOfxWQHLiEksa6s0hFu9Ox348d7QefarYlaFR5ArkhOwm3Da1pmxmxCtenj1+6luWD#r#n+EPn9L6Ce+9onqnMlT+i . 2010, (2): 14 -16 .  DOI: 10.3969/j.issn.1009-0479.2010.02.004