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[主观题]
钢是指含碳量小于()的铁碳合金。A.0.0218%B.2.11%C.0.6%D.6.67%
钢是指含碳量小于()的铁碳合金。
A.0.0218%
B.2.11%
C.0.6%
D.6.67%
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钢是指含碳量小于()的铁碳合金。
A.0.0218%
B.2.11%
C.0.6%
D.6.67%
A.0.25%.
B.0.6%.
C.0.8%.
D.2.06%.
A.0.25
B.0.60
C.0.80
D.2.06
A.纯铁
B.铸铁
C.钢
D.合金钢
A.大于2.11%
B.d~2.11%
C.小于6.67%
D.大于6.67%