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标题: gwd17-18急问 [打印本页]

作者: yl1004 时间: 2006-11-30 06:51
标题: gwd17-18急问

gwd17-18Over 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.

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.　
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.　
With charcoal’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.
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.
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.　错

为什么D不对，独立主格不是挺好的吗，而且简单清晰，但是A又什么as result of 和because不是不大好吗？

作者: renbenzhuyi 时间: 2006-11-30 07:06

D can be simpled as:

The replacemen and improvement, the output tripled.

作者: elaine1031 时间: 2009-7-30 14:19
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