(A) compared to的比较对象不对等，前者419 times the pay of blue-collar workers表达的是工资数， 而后者a ratio of是比率。
(B) a ratio that compares的compare不能用主动方式表达，应该是被比较sth be compared to…的省略形式（省略了主语和系动词，是惯用法）；compare to的比较对象不对象等，前者419 times the pay of blue-collar workers表达的是工资数，而后者42 times是比率。
(D) 缺少that引导宾语从句；indicates CEO's who…句子结构不完整，缺少谓语，who引导定语从句 修饰名词CEO's。
(E) 缺少that引导宾语从句；indicates CEO's earning…句子结构不完整，缺少谓语；compare to的 比较对象不对等，前者419 times the pay of blue-collar workers表达的是工资数，而后者42 times是 比率。

MARK

6.考察了同位语和状语的差异
B选项，a ratio that compares to 42 times是修饰419 times的同位语
C选项，as compared to作状语，修饰earn, 本句清晰地对比了419 times the pay of blue workers和42 times their pay,是两个数字间作比较。

7.DE indicate应该+从句 而不是＋n（CEO）
如果是宾从，必须补出that


8.as compared to正式用法，用于调查研究报告中的统计数据，非常好

9.CEO's 缩写字母组成的专有名词 复数可以＋s/'s

1. ABC比较的应该是419 times the pay和42 times their pay
单独比419 times the pay和ratio或者42 times—比较对象不平行

2. AB 42 times倍数不能单独用，C 倍数后面➕n,或者代词（如 twice that in 1999）这么用非常好

3.A a ratio of 42times—wordy,因为42times就是一种倍数（比率）＝ratio，直接说42 times就行了
但是CD中，ratio做42times的同位语 可以

4.B compare不用主动，应用compared分词表比较
(常见错误：when compare… Comparing… )

5.on average单独拿出来 插入语
419 times the pay和42 times their pay比，非常对等
a ratio在后面做同位语修饰42times their pay，避免了wordy
也就是说 分开了compare和 ratio 结构很清晰

B选项，a ratio that compares to 42 times是修饰419 times的同位语，但是ratio本身不能和42times作比较；
C选项，as compared to作状语，修饰earn, 本句清晰地对比了419 times the pay of blue workers和42 times their pay,是两个数字间作比较。
考察了同位语和状语的差异。

A CEO's now earn 和a ratio of 42 times in 1980对比
B a ratio 是前面419 times the pay的同位语。that compares to 42 times后面都是修饰a ratio的

the real problems with choice a:
- 'the ratio of 42 times' is redundant; it'd be good enough just to say '42 times'. note that the word 'ratio' is not redundant in choices c-d, since it's being used as a modifier to make a logical connection.
- it doesn't say 42 times what. not only is that unacceptably vague, but it also breaks parallelism.

as compared to~~

注意其他几个选项中，前后对比的成分

B选项，42 times后面最好加上名词。
Also, "as compared to" is the standard form in the reporting of statistics from research.

B选项，a ratio that compares to 42 times是修饰419 times的同位语，但是ratio本身不能和42times作比较；
C选项，as compared to作状语，修饰earn, 本句清晰地对比了419 times the pay of blue workers和42 times their pay,是两个数字间作比较。
考察了同位语和状语的差异。

a 第一分句中的an average of 419more pay 与第二分句中的a ratio of 42times 无法对比

CEO's 是 CEO 的复数形式，以缩写字母组成的专有名词的复数形式可以是加's 或加 s。

B 这个42 times不能单个出现也是很牛逼的解释，关键还是考比较，C比较完整的比较形式。

choice b is badly worded: 'compares to 42 times in 1980' seems to say that, on forty-two different occasions in 1980, the ceo:blue-collar ratio reached 419:1. this is not what we are trying to say.

but you can't just leave "42 times" hanging out alone.

percentages, on the other hand, can be referenced by themselves (as long as context, somewhere else, clearly indicates what the percent is of).
for instance, you can say "80% of the X's are male, up from 67% five years ago". here, the second percentage is understood to be also "of the X's".

you can't just write "42 times" by itself. it has to be 42 times something.
if it's 42 times something that was mentioned previously, or 42 times something that is in parallel structure to something that was mentioned previously, then you could use a relative pronoun (i.e., something like "42 times that in 1990", etc).

Ron说A选项中 the comparison made in choice a is ok. it's not quite as ideally worded as the comparison in choices b-c-d， it's fine. 所以A选项比较的是 CEO's和workers吗？？？

请问这个题的their 为什么没有ambiguous的嫌疑呢？ 没有明确说明指代的是CEO‘s 还是 workers 呀

又错一遍。
A：比较对象不对等
B：a ratio that compared 分词修饰而不是compares 作为谓语动词表达主动, 另外a ratio貌似严格意义上没有先行词，前面的419 times不是名词
D，E没that直接排除，E的比较也不对，收入不能比ratio