一道GMAT GWD SC题目解答Over the course of the eighteenth century, the average output of ironwork tripled as a result of several improvements in blowing machinery and because coal replaced charcoal as the fuel used in the smelting of iron ore. A

一道GMAT GWD SC题目解答Over the course of the eighteenth century, the average output of ironwork tripled as a result of several improvements in blowing machinery and because coal replaced charcoal as the fuel used in the smelting of iron ore. A
一道GMAT GWD SC题目解答
Over the course of the eighteenth century, the average output of ironwork tripled as a result of several improvements in blowing machinery and because coal replaced charcoal as the fuel used in the smelting of iron ore.
A.Over the course of the eighteenth century, the average output of ironwork tripled as a result of several improvements in blowing machinery and because coal replaced charcoal as the fuel used in the smelting of iron ore.
B.Over the course of the eighteenth century a tripling in the average output of ironwork was due to the replacement of charcoal by coal for the fuel used in the smelting of iron ore, in addition to several improvements in blowing machinery.
C.With charcoalâ's being replaced by coal as the fuel used in the smelting of iron ore and several improvements in blowing machinery, the average output of ironwork tripled over the eighteenth century.
D.The replacement of charcoal with coal for the fuel used in the smelting of iron ore and several improvements in blowing machinery, the average output of ironwork tripled over the eighteenth century.
E.Charcoal being replaced by coal as the fuel used in the smelting of iron ore, and several improvements in blowing machinery, which tripled the average output of ironwork over the course of the eighteenth century.

重点解释一下C 谢谢

一道GMAT GWD SC题目解答Over the course of the eighteenth century, the average output of ironwork tripled as a result of several improvements in blowing machinery and because coal replaced charcoal as the fuel used in the smelting of iron ore. A
亲,我直接跟你讲C把,with sth' being and N C的结构是这样这个结构是不平行的,而且being用错,ing表进行,这个“取代”不是一个持续性的动作,是一个短暂性的动作,另外作者愿意是想表达的因果关系,而不是伴随,所以C错
其他我随便说下D 结构不完整前一部分就是N and 这不是同位语 E除了being外,which指代有问题,很明显的错误,剩下A B了,说实话,这道题出的很渣,A中as a result of and because这个平行十分的有问题!gmat官方说过当句子平行时句子开头的单词要一致 比如 because...and because...但是在这道题中B的错误更明显,作者明显表达的是逻辑并列关系,但in addition to的出现让意思混淆了a tripling,in addition toseveral improvements or several improvements,in addition toseveral improvements,所以A相对好点,这道题不会在GMAT考试中参考的,GWD的很多题目存在争议,望慎重