2. 外语
  3. Pig iron, wrought iron, and steel contain iron carbides made up of ______ of carbon.

Pig iron, wrought iron, and steel contain iron carbides made up of ______ of carbon.

admin2004-12-29  47
问题 Pig iron, wrought iron, and steel contain iron carbides made up of ______ of carbon.
选项 A、amounts are different
B、different amounts that
C、different amounts
D、which amounts are different
答案C
解析
转载请注明原文地址:https://jikaoti.com/ti/psAYFFFM
0

托福（TOEFL）

相关试题推荐
随机试题
最新回复(0)