A.42°20´ B.84°40´ C.180°-42°20´ D.42°
A.0.50-0.55 B.0.40-0.45 C.0.40-0.50 D.0.20~0.25
A.3 B.5 C.6 D.1
A.60~70 B.70~80 C.80~90 D.50-60
A.30 B.50 C.80 D.60