part of / a part of 的区别此处不是决定性的,当然根据上面的讨论,简单来说part of更偏向形容抽象的东西,a part of 则更具体;
D选项中的to make,根据og的解释,"suggests that the deal itself includes making the company the largest manufacturer rather than its being the OUTCOME of the deal",说白了就是,这个deal本身的目的并不是要争最大,但是完成了这个deal,这间公司就自然变成最大了。如果用to make,就显得像故意的一样。。。