civil_express 版 (精华区)

寄信人: momo (假装不知道)
标  题: P100
发信站: BBS 听涛站 (Sat Jan 15 05:38:21 2005)
来  源: 219.224.148.70

1.a) O->A O->C
  b) 无
  c) 逆时针
寄信人: momo (假装不知道)
标  题: 起床了，继续……
发信站: BBS 听涛站 (Sat Jan 15 11:56:04 2005)
来  源: 219.224.148.70
                                                                  
P100                                                              
1.(d)A->C                                                         
  (e)逆时针                                                       
  (f)顺时针                                                       
2.(c)                                                             
3.(1)否 否 L1否 L2是                                              
  (2)L1有，L2无 是 否                                             
4.(4)                                                             
5.0                                                               
  C*r1*q 水平向左                                                 
  0