A.7°/10° B.10°/5° C.10°/15° D.15°/10°
A.淬红火 B.淬蓝火 C.淬黄火 D.淬经绿火
A.80% B.90% C.95% D.10%
A.平放 B.竖放 C.悬挂 D.固定在专门的托架上
A.10～20° B.20～40° C.30～50° D.50～80°
