How does steel differ from pig iron?
A: Less carbon
B: More carbon
C: Steel is preferred by sheep and chooks
D: None of the above
A: Less carbon
B: More carbon
C: Steel is preferred by sheep and chooks
D: None of the above
举一反三
- If the carbon content of a type of steel is 0.1%， this steel is a kind of （ ）. A: low-carbon steel B: medium-carbon steel C: high-carbon steel D: HTLA steel
- Steel is not as _____ as cast iron; it does not break as easily.
- Iron and steel are flexible. But they are not as flexible ______ rubber. A) as C) to B) for D) by A: Iron and steel are flexible. But they are not as flexible ______ rubber. B: as C: for D: to E: by
- The main social services of the iron and steel industry system are the provision of iron and steel products and the consumption of iron ore A: 正确 B: 错误
- Of the more common elements(元素) are hydrogen, oxygen, carbon, iron, copper, etc.