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丐  弌
弌乖丐丐 丐  
   丐 丐 弌弌丐 丐
   个丐 乖弌丐.

   仂亳仍舒于 亠仆亠于, 舒于仍亳仆 舒于亳亟仂于, 亠亠仍亳仆 弌仂礌仂于

          弌丿 丐弌丐 丕丼乂
               丐仂亟仂 舒弍仍亠从仂于
                弌仂亳, 仍亞舒亳
仆仂于仆亳 亠仍亳:

 仄舒亠仄舒亳亠从仂 仂仗亳舒仆亳亠 仆舒 亟亳仆舒仄亳仆仂仂 仗仂于亠亟亠仆亳亠 仆舒 仗仂亠舒
  从舒仍礌亠

 仆舒亞仍亠亟仆舒 亳 亟亳亠亠仆亳舒仆舒 从舒亳仆舒 亰舒 于仍亳礌亳亠仂 仆舒 舒亰仍亳仆亳亠
  舒从仂亳 亳 仆舒舒 从仂亠仍舒亳

 仂仗亠亟亠仍礌亠 仆舒 仆舒亶-亠亠从亳于仆仂 亟亠亶于舒亳亠 仂  仗仂 于亳亟 亳
  于亠仍亳亳仆舒

 仂仗亳仄亳亰舒亳 仆舒 仗仂亠舒 仗仂亠亟于仂仄 仗仂亟仂亟 亳亰弍仂 仆舒
  舒从仂亳亠




                                                2
弌亟亢舒仆亳亠 仆舒 仄亠仂亟亳从舒舒:

   亠从仗亠亳仄亠仆舒仍仆舒 舒仆仂于从舒
   仗仍舒仆亳舒仆亠 仆舒 亠从仗亠亳仄亠仆舒
   仂仆仂 仆舒 仗仍舒仆亳舒仆亳 亠从仗亠亳仄亠仆

从仗亠亳仄亠仆舒仍仆舒舒 舒仆仂于从舒 亠 仂亳 仂:
     亠从仗亠亳仄亠仆舒仍亠仆 舒于仂仄仂弍亳仍
     亳亠仄舒 亰舒 亠亞亳亳舒仆亠 仆舒 舒从仂亳亠




                                                  3
 从舒亠于仂仂 仆舒 仄舒亠仄舒亳亠从亳 仄仂亟亠仍 仆舒 仗仂亠舒 从舒仍礌亠 亠 仗亳亠仄舒
仍亳仆亠亠仆 仄仂亟亠仍 (仗仂仍亳仆仂仄 仂 仗于舒 亠仗亠仆 于于 仂仄舒舒 仆舒 亠亞亠亳):

      b0 + b1 x1 + b2 x2 + b3 x3 ...
仗亠亟亠仍礌亠 仆舒 仍仂从舒仍仆舒舒 仂弍仍舒:
    I 亠舒仗  亳亰弍仂 仆舒 仆亳于仂仂
    II 亠舒仗  亳亰弍仂 仆舒 仆亳于仂仂 仆舒 于舒亳舒仆亠.

亳于仂仂 仆舒 舒从仂亳亠 亠 仂亰仆舒舒于舒 亳仄亠亳仆仂  0, -1, +1 亳 亳仄舒
仍亠亟仆亳亠 亰仆舒亠仆亳:

      +1 - 亞仂仆仂 仆亳于仂,
      0 - 仂仆仂于仆仂 仆亳于仂,
      -1 - 亟仂仍仆仂 仆亳于仂.
                                                                      
                                                              x j  x jO
仂亟亳舒仆亠仂 仆舒 舒从仂亳亠 亠 亳亰于于舒 仗仂 仂仄仍舒舒:      xj =
                                                                  yj

                                                   4
亰 仂仆仂于舒 仆舒 舒仆舒仍亳亰 仆舒 仍亳亠舒仆亳 亟舒仆仆亳 亠 仂仗亠亟亠仍
舒舒从亠亳亳从亳亠 仆舒 仍仂从舒仍仆亳亠 仂弍仍舒 仆舒 舒从仂仆仂仂 仗仂舒仆于仂
(舒弍仍.1)




                                                 5
仂仂磦舒仆亠 仆舒 仄舒亳舒舒 仆舒 仗仍舒仆亳舒仆亠 亠从仗亠亳仄亠仆舒:

仍亠仆 舒从仂亠仆 亠从仗亠亳仄亠仆 亠 仗仂仍舒于舒 仗亳 亠舒仍亳亰亳舒仆亠仂 仆舒
于亳从亳 于亰仄仂亢仆亳 仂礌亳 仆舒 仆亠亞仂于仂仂 仆亳于仂.
仗亠亟亠仍礌亠仂 仆舒 弍仂 仆舒 仂仗亳亳亠 N 仗亳 m 舒从仂亳 亠 亳亰于于舒 仗仂
仂仄仍舒舒:

                 N = N1 + N 留 + N 0




           N1 = 2 m   - 仂仗亳亳 于 磲仂仂 仆舒 亠从仗亠亳仄亠仆舒;
          N 留 = 2m - 仂仗亳亳 于 亰于亠亰亟仆亳亠 仂从亳,
          N0 = 1   - 弍仂亶 仆舒 仂仗亳亳亠 于 亠仆舒 仆舒 亠从仗亠亳仄亠仆舒
                      - m  弍仂亶 仆舒 舒从仂亳亠




                                                  6
亰仗仂仍亰于舒仆亠仂 仆舒 亟仂弍亠仆 舒从仂亠仆 亠从仗亠亳仄亠仆 亠仍亳仄亳仆亳舒 亳亰仍亳仆舒舒
亳仆仂仄舒亳 仗仂仍亠仆舒 仗亳 仗仍仆亳 舒从仂亠仆 亠从仗亠亳仄亠仆.


                        N = 2 m 1




                                               7
弌亠亟仆仂舒亳仄亠亳仆仂仂 仄舒亠仄舒亳亠从仂 仂舒从于舒仆亠 仆舒 仂仗亳亳亠 亳
亟亳仗亠亳舒 亠 仂仗亠亟亠仍 仗仂 仂仄仍亳亠:




              1 m
           y =  yik
              m i =1

                    1              
          S i2   =
                   m 1
                         ( y ik  y i ) 2




                                               8
仂于亠从舒舒 仆舒 亠亟仆仂仂亟仆仂舒 仆舒 亟亳仗亠亳舒 仆舒 亳亰于亠仆亳亠
 亳亰仄亠于舒仆亳 亠 亳亰于于舒 仗仂 从亳亠亳 仆舒 仂舒仆:

                         2
                       S im
                 g=   m
                       S i2
                      i =1


亳 5% -仂于仂 仆亳于仂 仆舒 亰仆舒亳仄仂                 亠     亳亰于于舒   仂亠仆从舒   仆舒
于亰仗仂亳亰于仂亟亳仄仂舒 仆舒 亟亳仗亠亳舒

           n
           S i2
          i =1
   S2 =
    y                         N  弍仂亶 仆舒 仂仗亳亳亠;
               N



                                                           9
亳仗亠亳舒 仆舒 舒亟亠从于舒仆仂舒 亠 仂仗亠亟亠仍 仗仂 仂仄仍舒舒:
                     ^
            (Y i  Y ) 2
 S 舒亟. =
               n  j 1
   弌仍亠亟于舒 仂仗亠亟亠仍礌亠 仆舒 从仂亠亳亳亠仆舒 仆舒 亠亞亠亳:
               N
      1
 bi =
      N
                Yi X ij
               i =1

弌仂亶仆仂舒 亳仄 亠 仆舒仆舒 于 舒弍仍亳舒舒. 仆仂于舒 亰舒 仂亠仆磦舒仆亠
亰仆舒亳仄仂舒 仆舒 从仂亠亳亳亠仆舒 仆舒 亠亞亠亳 仍亢亳 仗仂仂磦舒仆亠仂 仆舒
亟仂于亠亳亠仍仆亳 亳仆亠于舒仍, 从舒仂 仆舒亶-仆舒仗亠亟 亠 仂仗亠亟亠仍 亟亳仗亠亳舒 仆舒
从仂亠亳亳亠仆亳亠 仆舒 亠亞亠亳 仗仂 仂仄仍舒舒:

    2
                S2
                 y
   S于      =
                N
                                                   10
仂于亠从舒 亰仆舒亳仄仂舒 仆舒 从仂亠亳亳亠仆亳亠 仆舒 亠亞亠亳 亠
亳亰于于舒 于亰 仂仆仂于舒 亟仂于亠亳亠仍仆亳 亳仆亠于舒仍 亳 亠 仂仗亠亟亠仍 仂 亳亰舒亰舒:


                    2
     b j = 賊 t j S 于


b j -亟仂于亠亳亠仍亠仆 亳仆亠于舒仍 仆舒 从仂亠亳亳亠仆舒 仆舒 亠亞亠亳,
tj   -从于舒仆亳仍 仆舒 弌ミ莞黍術 仗亳 5% -仂于仂 仆亳于仂 仆舒 亰仆舒亳仄仂
 2
S于   -亟亳仗亠亳 仆舒 从仂亠亳亳亠仆舒 仆舒 亠亞亠亳.

从仂 舒弍仂仍ム仆亳亠 亰仆舒亠仆亳 仆舒 从仂亠亳亳亠仆舒 仆舒 亠亞亠亳 舒 仗仂-亞仂仍亠仄亳
仂 舒弍仂仍ム仆亳亠 亰仆舒亠仆亳 仆舒 亟仂于亠亳亠仍仆亳 亳仆亠于舒仍, 仂 于亳从亳
从仂亠亳亳亠仆亳 仆舒 亠亞亠亳 舒 亰仆舒亳仄亳.




                                                  11
舒 亟舒 弍亟舒 亟仂仂于亠仆亳 仄舒亠仄舒亳亠从亳亠 仄仂亟亠仍亳, 亠亞亠亳仂仆仆亳亠
舒于仆亠仆亳 亠 仗仂于亠磦舒 亰舒 舒亟亠从于舒仆仂 仗仂 仆磻仂亶 仂 亳亰于亠仆亳亠
从亳亠亳亳. 舒亶-亠仂 亠 亳亰仗仂仍亰于舒 F 从亳亠亳 仆舒 个亳亠:


                                                  2
                                                S 舒亟
                                           F=
                                                 S2
                                                  y



亳 5%-仂于仂 仆亳于仂 仆舒 亰仆舒亳仄仂 舒弍仍亳仆仂仂 亰仆舒亠仆亳亠 仆舒 从亳亠亳 仆舒
个亳亠 亠 仂仗亠亟亠仍亠仆舒 于亠仍亳亳仆舒 从仂仂 磡于舒 亟舒 弍亟亠 仗仂-亞仂仍礆舒 仂
亳仍亠仆舒舒 仂亶仆仂 仂仗亠亟亠仍亠仆舒 仗仂 仂仄仍舒舒 亰舒 亟舒 亠 仗仂于亟亳
亳仗仂亠亰舒舒 亰舒 舒亟亠从于舒仆仂 仆舒 仄仂亟亠仍舒.



                                                12
亰于仂亟亳:


    舒亠仄舒亳亠从亳 仄亠仂亟 仆舒 仗仍舒仆亳舒仆亠 仆舒 亠从仗亠亳仄亠仆舒 仗亳
    亳亰仍亠亟于舒仆亠 从仂亠亳亳亠仆舒 仆舒 仗仂亳于仍亠仆亳亠 仗亳 仗亳亟于亳亢于舒仆亠 仆舒
    舒于仂仄仂弍亳仍舒 仗仂亰于仂仍磦舒:

    磻仂仍从仂从舒仆仂 仆舒仄舒仍磦舒仆亠 仆舒 于亠仄亠仂 亰舒 仗仂于亠亢亟舒仆亠 仆舒 仂仗亳亳亠 于
    舒于仆亠仆亳亠  仂弍仂仗亳亠舒舒 仄亠仂亟亳从舒 仆舒 亠亟仆仂 舒从仂仆仂
    亠从仗亠亳仄亠仆亳舒仆亠.

   仗亠亟亠仍礌亠 仆舒 亠仗亠仆舒 仆舒 于亰亟亠亶于亳亠 仆舒 亠从仗仍仂舒舒亳仂仆仆亳亠
    舒从仂亳 仗仂 从仂亠亳亳亠仆亳亠 仆舒 亠亞亠亳 亳 仆舒舒 从仂亠仍舒亳.

   亰仄仂亢仆仂 亰舒 仗仂于亠从舒 亰舒 于亠仆仂舒 仆舒 舒弍仂仆舒舒 亳仗仂亠亰舒.




                                                     13
亊  丐!




                   14

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Resistance from movement of the car 2011 y

  • 1. 丐 弌 弌乖丐丐 丐 丐 丐 弌弌丐 丐 个丐 乖弌丐. 仂亳仍舒于 亠仆亠于, 舒于仍亳仆 舒于亳亟仂于, 亠亠仍亳仆 弌仂礌仂于 弌丿 丐弌丐 丕丼乂 丐仂亟仂 舒弍仍亠从仂于 弌仂亳, 仍亞舒亳
  • 2. 仆仂于仆亳 亠仍亳: 仄舒亠仄舒亳亠从仂 仂仗亳舒仆亳亠 仆舒 亟亳仆舒仄亳仆仂仂 仗仂于亠亟亠仆亳亠 仆舒 仗仂亠舒 从舒仍礌亠 仆舒亞仍亠亟仆舒 亳 亟亳亠亠仆亳舒仆舒 从舒亳仆舒 亰舒 于仍亳礌亳亠仂 仆舒 舒亰仍亳仆亳亠 舒从仂亳 亳 仆舒舒 从仂亠仍舒亳 仂仗亠亟亠仍礌亠 仆舒 仆舒亶-亠亠从亳于仆仂 亟亠亶于舒亳亠 仂 仗仂 于亳亟 亳 于亠仍亳亳仆舒 仂仗亳仄亳亰舒亳 仆舒 仗仂亠舒 仗仂亠亟于仂仄 仗仂亟仂亟 亳亰弍仂 仆舒 舒从仂亳亠 2
  • 3. 弌亟亢舒仆亳亠 仆舒 仄亠仂亟亳从舒舒: 亠从仗亠亳仄亠仆舒仍仆舒 舒仆仂于从舒 仗仍舒仆亳舒仆亠 仆舒 亠从仗亠亳仄亠仆舒 仂仆仂 仆舒 仗仍舒仆亳舒仆亳 亠从仗亠亳仄亠仆 从仗亠亳仄亠仆舒仍仆舒舒 舒仆仂于从舒 亠 仂亳 仂: 亠从仗亠亳仄亠仆舒仍亠仆 舒于仂仄仂弍亳仍 亳亠仄舒 亰舒 亠亞亳亳舒仆亠 仆舒 舒从仂亳亠 3
  • 4. 从舒亠于仂仂 仆舒 仄舒亠仄舒亳亠从亳 仄仂亟亠仍 仆舒 仗仂亠舒 从舒仍礌亠 亠 仗亳亠仄舒 仍亳仆亠亠仆 仄仂亟亠仍 (仗仂仍亳仆仂仄 仂 仗于舒 亠仗亠仆 于于 仂仄舒舒 仆舒 亠亞亠亳): b0 + b1 x1 + b2 x2 + b3 x3 ... 仗亠亟亠仍礌亠 仆舒 仍仂从舒仍仆舒舒 仂弍仍舒: I 亠舒仗 亳亰弍仂 仆舒 仆亳于仂仂 II 亠舒仗 亳亰弍仂 仆舒 仆亳于仂仂 仆舒 于舒亳舒仆亠. 亳于仂仂 仆舒 舒从仂亳亠 亠 仂亰仆舒舒于舒 亳仄亠亳仆仂 0, -1, +1 亳 亳仄舒 仍亠亟仆亳亠 亰仆舒亠仆亳: +1 - 亞仂仆仂 仆亳于仂, 0 - 仂仆仂于仆仂 仆亳于仂, -1 - 亟仂仍仆仂 仆亳于仂. x j x jO 仂亟亳舒仆亠仂 仆舒 舒从仂亳亠 亠 亳亰于于舒 仗仂 仂仄仍舒舒: xj = yj 4
  • 5. 亰 仂仆仂于舒 仆舒 舒仆舒仍亳亰 仆舒 仍亳亠舒仆亳 亟舒仆仆亳 亠 仂仗亠亟亠仍 舒舒从亠亳亳从亳亠 仆舒 仍仂从舒仍仆亳亠 仂弍仍舒 仆舒 舒从仂仆仂仂 仗仂舒仆于仂 (舒弍仍.1) 5
  • 6. 仂仂磦舒仆亠 仆舒 仄舒亳舒舒 仆舒 仗仍舒仆亳舒仆亠 亠从仗亠亳仄亠仆舒: 仍亠仆 舒从仂亠仆 亠从仗亠亳仄亠仆 亠 仗仂仍舒于舒 仗亳 亠舒仍亳亰亳舒仆亠仂 仆舒 于亳从亳 于亰仄仂亢仆亳 仂礌亳 仆舒 仆亠亞仂于仂仂 仆亳于仂. 仗亠亟亠仍礌亠仂 仆舒 弍仂 仆舒 仂仗亳亳亠 N 仗亳 m 舒从仂亳 亠 亳亰于于舒 仗仂 仂仄仍舒舒: N = N1 + N 留 + N 0 N1 = 2 m - 仂仗亳亳 于 磲仂仂 仆舒 亠从仗亠亳仄亠仆舒; N 留 = 2m - 仂仗亳亳 于 亰于亠亰亟仆亳亠 仂从亳, N0 = 1 - 弍仂亶 仆舒 仂仗亳亳亠 于 亠仆舒 仆舒 亠从仗亠亳仄亠仆舒 - m 弍仂亶 仆舒 舒从仂亳亠 6
  • 7. 亰仗仂仍亰于舒仆亠仂 仆舒 亟仂弍亠仆 舒从仂亠仆 亠从仗亠亳仄亠仆 亠仍亳仄亳仆亳舒 亳亰仍亳仆舒舒 亳仆仂仄舒亳 仗仂仍亠仆舒 仗亳 仗仍仆亳 舒从仂亠仆 亠从仗亠亳仄亠仆. N = 2 m 1 7
  • 8. 弌亠亟仆仂舒亳仄亠亳仆仂仂 仄舒亠仄舒亳亠从仂 仂舒从于舒仆亠 仆舒 仂仗亳亳亠 亳 亟亳仗亠亳舒 亠 仂仗亠亟亠仍 仗仂 仂仄仍亳亠: 1 m y = yik m i =1 1 S i2 = m 1 ( y ik y i ) 2 8
  • 9. 仂于亠从舒舒 仆舒 亠亟仆仂仂亟仆仂舒 仆舒 亟亳仗亠亳舒 仆舒 亳亰于亠仆亳亠 亳亰仄亠于舒仆亳 亠 亳亰于于舒 仗仂 从亳亠亳 仆舒 仂舒仆: 2 S im g= m S i2 i =1 亳 5% -仂于仂 仆亳于仂 仆舒 亰仆舒亳仄仂 亠 亳亰于于舒 仂亠仆从舒 仆舒 于亰仗仂亳亰于仂亟亳仄仂舒 仆舒 亟亳仗亠亳舒 n S i2 i =1 S2 = y N 弍仂亶 仆舒 仂仗亳亳亠; N 9
  • 10. 亳仗亠亳舒 仆舒 舒亟亠从于舒仆仂舒 亠 仂仗亠亟亠仍 仗仂 仂仄仍舒舒: ^ (Y i Y ) 2 S 舒亟. = n j 1 弌仍亠亟于舒 仂仗亠亟亠仍礌亠 仆舒 从仂亠亳亳亠仆舒 仆舒 亠亞亠亳: N 1 bi = N Yi X ij i =1 弌仂亶仆仂舒 亳仄 亠 仆舒仆舒 于 舒弍仍亳舒舒. 仆仂于舒 亰舒 仂亠仆磦舒仆亠 亰仆舒亳仄仂舒 仆舒 从仂亠亳亳亠仆舒 仆舒 亠亞亠亳 仍亢亳 仗仂仂磦舒仆亠仂 仆舒 亟仂于亠亳亠仍仆亳 亳仆亠于舒仍, 从舒仂 仆舒亶-仆舒仗亠亟 亠 仂仗亠亟亠仍 亟亳仗亠亳舒 仆舒 从仂亠亳亳亠仆亳亠 仆舒 亠亞亠亳 仗仂 仂仄仍舒舒: 2 S2 y S于 = N 10
  • 11. 仂于亠从舒 亰仆舒亳仄仂舒 仆舒 从仂亠亳亳亠仆亳亠 仆舒 亠亞亠亳 亠 亳亰于于舒 于亰 仂仆仂于舒 亟仂于亠亳亠仍仆亳 亳仆亠于舒仍 亳 亠 仂仗亠亟亠仍 仂 亳亰舒亰舒: 2 b j = 賊 t j S 于 b j -亟仂于亠亳亠仍亠仆 亳仆亠于舒仍 仆舒 从仂亠亳亳亠仆舒 仆舒 亠亞亠亳, tj -从于舒仆亳仍 仆舒 弌ミ莞黍術 仗亳 5% -仂于仂 仆亳于仂 仆舒 亰仆舒亳仄仂 2 S于 -亟亳仗亠亳 仆舒 从仂亠亳亳亠仆舒 仆舒 亠亞亠亳. 从仂 舒弍仂仍ム仆亳亠 亰仆舒亠仆亳 仆舒 从仂亠亳亳亠仆舒 仆舒 亠亞亠亳 舒 仗仂-亞仂仍亠仄亳 仂 舒弍仂仍ム仆亳亠 亰仆舒亠仆亳 仆舒 亟仂于亠亳亠仍仆亳 亳仆亠于舒仍, 仂 于亳从亳 从仂亠亳亳亠仆亳 仆舒 亠亞亠亳 舒 亰仆舒亳仄亳. 11
  • 12. 舒 亟舒 弍亟舒 亟仂仂于亠仆亳 仄舒亠仄舒亳亠从亳亠 仄仂亟亠仍亳, 亠亞亠亳仂仆仆亳亠 舒于仆亠仆亳 亠 仗仂于亠磦舒 亰舒 舒亟亠从于舒仆仂 仗仂 仆磻仂亶 仂 亳亰于亠仆亳亠 从亳亠亳亳. 舒亶-亠仂 亠 亳亰仗仂仍亰于舒 F 从亳亠亳 仆舒 个亳亠: 2 S 舒亟 F= S2 y 亳 5%-仂于仂 仆亳于仂 仆舒 亰仆舒亳仄仂 舒弍仍亳仆仂仂 亰仆舒亠仆亳亠 仆舒 从亳亠亳 仆舒 个亳亠 亠 仂仗亠亟亠仍亠仆舒 于亠仍亳亳仆舒 从仂仂 磡于舒 亟舒 弍亟亠 仗仂-亞仂仍礆舒 仂 亳仍亠仆舒舒 仂亶仆仂 仂仗亠亟亠仍亠仆舒 仗仂 仂仄仍舒舒 亰舒 亟舒 亠 仗仂于亟亳 亳仗仂亠亰舒舒 亰舒 舒亟亠从于舒仆仂 仆舒 仄仂亟亠仍舒. 12
  • 13. 亰于仂亟亳: 舒亠仄舒亳亠从亳 仄亠仂亟 仆舒 仗仍舒仆亳舒仆亠 仆舒 亠从仗亠亳仄亠仆舒 仗亳 亳亰仍亠亟于舒仆亠 从仂亠亳亳亠仆舒 仆舒 仗仂亳于仍亠仆亳亠 仗亳 仗亳亟于亳亢于舒仆亠 仆舒 舒于仂仄仂弍亳仍舒 仗仂亰于仂仍磦舒: 磻仂仍从仂从舒仆仂 仆舒仄舒仍磦舒仆亠 仆舒 于亠仄亠仂 亰舒 仗仂于亠亢亟舒仆亠 仆舒 仂仗亳亳亠 于 舒于仆亠仆亳亠 仂弍仂仗亳亠舒舒 仄亠仂亟亳从舒 仆舒 亠亟仆仂 舒从仂仆仂 亠从仗亠亳仄亠仆亳舒仆亠. 仗亠亟亠仍礌亠 仆舒 亠仗亠仆舒 仆舒 于亰亟亠亶于亳亠 仆舒 亠从仗仍仂舒舒亳仂仆仆亳亠 舒从仂亳 仗仂 从仂亠亳亳亠仆亳亠 仆舒 亠亞亠亳 亳 仆舒舒 从仂亠仍舒亳. 亰仄仂亢仆仂 亰舒 仗仂于亠从舒 亰舒 于亠仆仂舒 仆舒 舒弍仂仆舒舒 亳仗仂亠亰舒. 13
  • 14. 亊 丐! 14