题目内容：

英语翻译
The science of medicine,__ very rapid progress has been made lately,is perhaps the most important of all the sciences.
A.on which B.by which C.in which D.from which

优质解答

选C.两个逗号间是非限定定语从句.直译为“医科,近来在这一科学领域中取得了飞速的进步,可能是所有科学中最总要的（科学）.合适的翻译可为：医科可能是所有科学中最重要的科学,近来在这一领域中取得了飞速的进步.改写...