第28题: [单项选择]Replacing two catalogues with one has meant that A. all the lines from both catalogues are available. B. the catalogue has now become cheaper to produce. C. sales from the stores are already increasing. 参考答案:B 答案解析:第四段说每年的印刷成本降低了，所以选B，A项太片面，并不是两种cataloues都能显示所有的产品，由第四段最后一句可知，目前的销售量并未增加。
A. privilege B. precaution C. patent D. monopoly 参考答案:C 答案解析:[解析]语义连贯题。根据题干中的inventor，take out，new type of printing machine等线索信息可推断，此题选[C]patent(专利)。take out意为“(
