OA′ |
AA′ |
OB′ |
BB′ |
OC′ |
CC′ |
OA′ |
AA′ |
OB′ |
BB′ |
OC′ |
CC′ |
OD′ |
DD′ |
OA′ |
AA′ |
OB′ |
BB′ |
OC′ |
CC′ |
OD′ |
DD′ |
VO-BCD |
VA-BCD |
VO-CAD |
VA-BCD |
VO-ABD |
VC-ABD |
VO-ABC |
VD-ABC |
VABCD |
VABCD |
OA′ |
AA′ |
OB′ |
BB′ |
OC′ |
CC′ |
OD′ |
DD′ |
1000π |
3 |
2 |
3 |
A.8 | B.10 | C.20 | D.30 |
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