13-1

x1

1/1

13-2

x1

1/1

13-3

x1

1/1

13-4

x1

1/1

13-5

x1

1/1

13-6

x1

1/1

13-7

x1

1/1

13-8

x1

1/1

13-9

x1

1/1

13-10

x1

1/1