白勇讲义11 不解

（A）which was determined by when the sun reached the observer's meridian and differing

（B）which was determined by when the sun reached the observer's meridian and which differed

（C）which were determined by when the sun reached the observer's meridian and differing

（D）determined by when the sun reached the observer's meridian and differed

（E）determined by when the sun reached the observer's meridian and differing

答案为E

为什么不选B？DE里选的话，为什么不是D?

似乎了解了，E的原句应该是 local times, (which were) determined by when the such reached the observer's meridian and (which) differed from city to city. 前面都省略掉which, differ要改成differing. 这样写出来你就应该可以了解为什么不选B了, 不够简洁啊!

划线部分为非限制定语从句，先行词为local times, 复数,故B排除

相同意思的情况下，分次结构优于从句，因为简洁 （根据XDF讲的普遍语言规则：实意名词>动词>形容词>抽象名词>分词动名词>从句）正确选项只能限定在DE中

本题为分词与分词并列对称，分词与分词并列可以是两个过去分词并列，两个现在分词并列，也可以是过分与现分并列。取决与句子的逻辑意思。被动用过分，主动用现分。本题differ用被动不符合逻辑意思

谢谢各位大虾指点

og11－39，和这道题是一个类型的，昨天做到了，可以参考一下