Steel is an alloy composed ___of iron and carbon. A. primarily B. traditionally C. carefully D. partially 相关知识点: 试题来源: 解析 正确答案:A解析:primarily主要地;traditionally传统上地;carefully小心地,谨慎地;partially部分地。该句的意思是“钢铁主要是由铁和碳构成的一种合金”,故答案为A。反馈...
Steel is an alloy composed ___of iron and carbon. A.primarilyB.traditionallyC.carefullyD.partially 答案 A[解析] primarily主要地;traditionally传统上地;carefully小心地,谨慎地;partially部分地。该句的意思是“钢铁主要是由铁和碳构成的一种合金”,故答案为A。相关推荐 1Steel is an alloy composed ___of...
Steel is an alloy(合金)composed ()of iron and carbon.A.primarilyB.traditionallyC.carefu
A3 Steel is an alloy of iron and carbon.(a)Describe, with the aid of labelled diagram(s), the benefit of mixing carbon with iron.(b)The percentage of iron in steel can be determined vi a reaction with dilute sulfuric acid.The iron in steel reacts with dilute sulfuric acid to produc...
1英语翻译Steel is an alloy of iron and carbon with other elements added to produce specific properties.the various types of steel can be grouped under two major headings.carbon steel .a steel in which the main alloying element is carbon .carbon steels are further divided into three groups .lo...
aSteel is an alloy of iron mixed with elements like carbon and chromium. 钢是与元素混合的铁合金象碳和铬。[translate]
A.traditionallyB.ironicallyC.carefullyD.principally 相关知识点: 试题来源: 解析 D [词义辨析] primarily表示“主要地”,与D项的principally“主要地”表示的含义相同。Traditionally“传统地”;ironically“讽刺地”;carefully“小心地”。反馈 收藏
The government’s new program will ()a lot of new jobs for the local residents. 点击查看答案手机看题 问答题 Strictly speaking, there should be a clear ()between dictionaries and encyclopedias. 点击查看答案手机看题 问答题 The map was drawn to the standard ()of 1 to a million, so there ...
19 Steel is an alloy with a very small percentage of carbon. C Which statement is correct? A A decrease in the percentage of carbon makes the steel more brittle. B An increase in the percentage of carbon makes the steel softer. C Carbon disrupts the metallic structure of iron. D Iron ...
Steel is an alloy composed of elements like carbon and iron. Iron is an element found in the Earth’s crust. Iron is actually the base metal found in steel. This contributes to steel’s overall strength. While wrought iron and cast iron were the material of choice in ancient times, they...