好奇怪的题啊！！！

cutebella · 发表于 2010-5-21 00:34:24

18. GWD17-Q18: 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.

And并列，功能相同

Over the course of the eighteenth century, the average output of ironworktripled（动词）as a result of several improvements in blowing machinery andbecause 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.

A貌似很不对称喔。。。

arsenallyr · 发表于 2010-5-21 19:40:27

2345都有明显的瑕疵

好奇怪的题啊！！！

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