单项选择题
A.0.35,1.5,3.0,5.0 B.0.65,1.5,3.0,5.5 C.0.7,1.5,3.0,5.0 D.0.7,1.0,3.0,5.0
A.47 B.48 C.49 D.50
A.1° B.10° C.18° D.15°