Q18: 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. C) 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. 这题其他选项都很好排除 A和C我有点搞不太清楚哪个才是对的 A我不知道哪里有问题 C的话 charcoal's being这样的说法是正确的吗?? Q22: The current economic downturn has significantly reduced advertising income both for business journals as well as general consumer magazines, especially if focusing on technology. B) has significantly reduced advertising income both for business journals and for general consumer magazines, especially those focusing D) reduced both business journals’ and general consumer magazines’ advertising income significantly, especially if focused 这题答案是B 可以请教为何是B而非D吗?? thanks. -- To HITOKI 大便真是一件麻烦的事 ★HITOKI 可是大便爽 --

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