题型分类：推论题

原文定位：定位词：medieval clockmakers。利用定位词定位到第五段第四句至最后，都是在描述 medieval clockmakers 的具体做法，第三句给出导致 medieval clockmakers 如此做法的原因：“The result was relentless pressure to improve technique and design.”结果是对技术和设计进步的不停的压力。

选项分析：

A选项：“were able to continually make improvements in the accuracy of mechanical clocks”，对应第五段第三句。其中“continually”对应原句中“relentless”。

B选项：“were sometimes not well respected by other engineers”，文中没说不受尊重，而且根据第五段最后一句可知他们是机械工程的先驱，起到榜样和示范的作用，应该是受到尊重的。

C选项：“sometimes made claims about the accuracy of mechanical clocks that were not true”，文中没有说制表师表达中世纪的钟表的准确性是不对的。无中生有。

D选项：“rarely shared their expertise with other engineers”，文中没说他们很少与其他工程师分享专业，而且最后一句说他们“served as examples and teachers to other branches of engineering.” 选项与原文描述不符。