[Retracted] Reform of PBL Teaching Mode of Microcomputer System and Embedded Application Course Group

Table 1

Research status of PBL teaching model in China.

Years	Number of related literature	Growth ratio
2008	53	—
2009	97	45.36
2010	98	1.32
2011	143	31.46
2012	173	17.34
2013	178	2.80
2014	217	17.97
2015	215	−0.93
2016	245	12.24
2017	235	−4.25
2018	267	11.98