【正确答案】这些变革尽管令人瞩目，但由于为了谋利而在实施过程中采用了原始与野蛮的方式，从而给人类带来众多痛苦。最后使得人们在整个19世纪本能地惧怕并且反对机器的进步以及赖以存在的科学。

【答案解析】[结构分析] 该句是一复合句。主句是 these changes created so much... cruel manner；impressive as they were 是让步状语从句；in which they were exploited是定语从句，修饰that crude and creel manner；that 引出结果状语从句，修饰主句谓语；定语从句on which they rested 修饰(the progress) of science．