;b04.ept spider4.245 ep tt avgwith001 varwith001 (221) avgwithout001 varwithout001 (215) eptt001 th m eptt001 th098 a (0.02) rt th098 _1 90 rt _1 _2 90 rt _2 _3 90 ad th098 _1 _5 _2 _3 * th m _5 thffo098 b (0.1) en