唉,令人沮丧的复习之路...

完了,做题做晕了,这两天状态越来越差,连这种简单题都不知道怎么分析了,大脑趋于麻木...好绝望啊.... 麻烦G友们帮忙解释下,真是谢谢了..

In cold-water habitats, certain invertebrates and fish convert starches into complex carbohydrates called glycerols, in effect manufacturing its own antifreeze.

    (D) so that they manufacture their own antifreeze

恭喜楼主，瓶颈期，过了就是质的提升。

这题就这2个选项的话，选后面一个，能连接句子的就so that

The answer is C?

In my opinion, there is no cause-and-effect relationship between the former and the latter.

C expresses the result.

选C吗？

C：现在分词做结果状语

in effect 做副词，有效地

放在manufacturing 前有什么不妥吗？

排除其它选项后,就剩下这两个最有争议,所以只写了这两个出来.

是啊,不知道为什么答案是C,不是D呢?期待前辈解释~~