A.±(0%~2%) B.±(7%~%) C.±(5%~7%) D.±(3%~5%)
A.600°C~700°C B.700°C~800°C C.800°C~850°C D.850°C~900°C
A.成反比 B.成正比 C.相等 D.成等比數(shù)列