名词解释
A.10%～20% B.20%～30% C.30%～35% D.35%～40%
A.10° B.20° C.15° D.25°
A.370～400mm B.350mm C.420mm D.450mm
A.175～200mm B.180～190mm C.165～210mm D.150～200mm
A.700～750 B.600～650 C.600～700 D.800～850
A.10° B.15° C.20° D.25°