E，they are不能省略，因为as/as比较时，时态一致才可以省略谓语动词。这里前面是have been后面是now，两个时间不一样，对应的时态也不一样，需要补出谓语动词。they are里的are表达出了与被比较对象匹配的时间逻辑。

2) 比较的对象要概念对等， 正确, were as disturbing to his own time as they are compelling for ours表明是过去的情况和
现在的情况相对比, 符合逻辑意思; 比较双方概念对等,两个句子powerful style and his choices
were disturbing to his own time和they are compelling for ours进行比较
they are不能省略，因为as/as比较时，时态一致才可以省略谓语动词。
还原以后的结构：Thomas Eakins' powerful style and his choices were as disturbing to his own time as they ARE compelling for ours. 必须补充出谓语动词are

时态不一致，不能省略

过去与现在的比较：一般过去式VS一般现在时
E：现在完成时包含了现在
省略：省与不省略都正确，无需纠结，考点在于时态

disturbing不是一个延长至今的事，E错

in his own time 很重要 体现了时间的对比

没注意单复数主语

这里是两个时间段的比较，所以 disturbing 和compelling的时态不应该是一样的
i can run faster than my father.
--> this implies that i can run faster than my father can run right now.
i can run faster than my father [i]could (when he was young).[/i]
--> this is how we compare two things that happened in different timeframes.

Thomas thought his style and choice were disturbing his time, but we are compelling them. 时态不一致是可以的，毕竟发生动作时的时态就不一样

they are不能省略，因为as/as比较时，时态一致才可以省略谓语动词。这里前面是have been后面是now，两个时间不一样，对应的时态也不一样，需要补出谓语动词。they are里的are表达出了与被比较对象匹配的时间逻辑。

平行对应，E不平行： have been AS .... AS compelling for ours (have been被保存了下来) 明显不对
C: were AS XXXing to his own time AS they are XXXing for ours. 结构没问题

作者比较的同时还要表达一个时间的不一样，句子意思是homas Eakins's powerful style and his choices of subject曾经是disturbing to his own time，而同样的现在正在compelling for ours，能表达这种时间上的不一样的只有B选项，E选项没有表达不同时间，所以不对

还原以后的结构：Thomas Eakins' powerful style and his choices were as disturbing to his own time as they ARE compelling for ours. 必须补充出谓语动词are

A is as …… in his time as now或A is as …… in his time as it is now,主语+谓语+表语不同于SVO，不存在主句有SO两个名词会引起比较对象歧义的问题，后面的they are带上也可以不带也可以
B，一个选项根据动作发生时间的不同可以有不同的时态，过去是disturbing用were，现在是disturbing用are，没毛病

后面省略意味着前后时态严格保持一致，但实际上时态有一个转变，因此they are不能省略

you should have a second verb in (e) because the tense changes. in general, if you don't have a second verb, then the implication is that the tense doesn't change.

in standard english usage, "disturbing to X" is usually used only when X is a person whose sensibilities have been disturbed. so this sentence appears to imply that the time period itself was offended.
"have been" implies that those disturbances (or their effects) still continue to this day. that's not true - the sentence implies that the disturbance existed only in that time period - so the present perfect doesn't make sense.

后面省略意味着前后时态严格保持一致，但实际上时态有一个转变，因此they are不能省略

E，nouns have been as disturbing as compelling for ours. as作介词，接名词，把句子补全就是nouns have been as disturbing as compelling for ours have been disturbing，比较对象错误
B，nouns were as disturbing as they are compelling for ours，把句子补全就是nouns were as disturbing as nouns are disturbing compelling for ours，compelling for ours作状语修饰形容词disturbing，比较对象正确。

his own times..在他的时代中，过去式的时间标志