[Retracted] On the Design of Assistant Teaching Using Network Multimedia Database in Volleyball Teaching

Table 1

Existing volleyball courts and number of volleyballs in 21 high schools in Changchun.

School (s)	Site (pcs)	Proportion (%)	School (s)	Volleyball (pcs)	Proportion (%)
11	0	52.4	12	Less than 10	57.2
5	1	23.8	4	10–20	19.0
2	2	9.5	2	20–30	9.5
2	3	9.5	1	30–40	4.8
1	More than 3	4.8	2	More than 40	9.5