If iron contains more than ____% C, the alloy is referred to a cast iron（）
A: 2.11
B: 0.77
C: 4.3
D: 0
A: 2.11
B: 0.77
C: 4.3
D: 0
举一反三
- Iron is more useful______ any other metal. A: as B: than C: then D: so
- In addition to iron and carbon, list the other elements that may be found in a grey cast iron and describe their effect on the properties of a grey cast iron.
- 铸铁含碳量为 A: 2.11%～4.3% B: 4.3%～6.69%C C: 2.11% ～6.69% D: 0.77%～2.11% E: 0.0218%~0.77%
- Steel is not as _____ as cast iron; it does not break as easily.
- 铸铁含碳量为 A: 2.11%～4.3% B: 2.11% ～6.69% C: 4.3%～6.69%C D: 0.77%～2.11%