(A) (B) as a method...如果as表身分, 修饰Leaching中间隔了一个同位语的确太远, 然本题as a method 是错误选项, 因为 (A) Leaching, 同位语, as a method…, it was…两个修饰语并列awkward, 且it指leaching, 前面的修饰结构awkward and wordy. (B)没有动词, well established 修饰的对象有歧义, 是method, 还是the extraction of minerals
一开始考虑C and D, 后来选D错了 我也知道D不简洁 但是C= Leaching was a well-established method of mineral extraction 直接接as early as the eigheenth century怪怪的 我也说不上来为什么怪怪的于是选D, 原因是D结构我觉得比较正常... 能为小弟解释一下除了不简洁之外, 为什么不选D的a method that was as early as 18th century吗