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...
百度试题 题目Steel is an alloy(合金)composed ()of iron and carbon. A.primarily B.traditionally C.carefully D.partially相关知识点: 试题来源: 解析 primarily 反馈 收藏
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 made from iron and carbon, but mostly from iron. The challenge for ancient metalsmiths was to create steel that was both flexible and strong. Early sword makers did not know how to precisely compose steel; when they melted iron, they got what they got, according to ...
百度试题 结果1 题目 What is alloy steel?What are the advantages of alloy steel compared with carbon steel?Why? 相关知识点: 试题来源: 解析 答案:略 反馈 收藏
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]
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 ...
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 map was drawn to the standard ()of 1 to a million, so there was not much detail. 点击查看答案手机看题 问答题 This scandal was all the more alarming because the companies involved in were mostly trusted ()names and the perpetrators were their top executives. ...
百度试题 结果1 题目Steel is an alloy primarily composed of iron and ___.相关知识点: 试题来源: 解析 carbon 反馈 收藏