
1.ѵĿģ
ӷչͬʱѵͣȡ

2.ϰ
˶۾Ļ30-40ףȻգۡӷչͬʱ顣סҰӵѸƶʱ·ء1ΪһѵڣԽԽá

3.ע
(1)ÿͣȵͬʱʾԼչ
(2)ٵࡢ׵ѡѵÿһ֪ѵҪѭġҪԼѵ߶ȡ