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题库 / GmatLaCourse-SC-39
As well as fossil fuel and building material, the coal is the source of the raw material of producing steels.
As well as fossil fuel and building material, the coal is the source of the raw material
Besides fossil fuel and building material, the coal is also the source of raw material
The coal is the source not only of fossil fuel and building material, but also of raw material
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如果选择C，这句话就翻译成：煤不仅是化石燃料和建筑材料的来源，而且是生产钢铁的原材料的来源。
如果选择B，翻译成：除了化石燃料和建筑材料，煤也是生产钢铁的原材料的来源。
这个没有理解啊？煤为什么会是这3个的来源？
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