A-A+
How did the science of preparing metals for us
问题详情
How did the science of preparing metals for use happen？
A．By any planned purpose.
B．By chance.
C．With fire.
D．On the part of those who were concerned about it.请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：浏览全文，就可以找到"…it(thescienceofpreparingmetalforuse)happenedmorebychancethanbyanyplannedpurpose…"，这与选项[B](偶然)说法完全一样，因此选项[B]正确．
