The so-called Artic Ocean, which many oceanographers consider no more than a Mediterranean Sea of the Artlantic Ocean, is undergoing dramatic changes in water level due to causes as diverse as ozone depletion, glacier melting, and the long-term effects of radioactive contamination.
A as diverse as
B as diverse as are
C as diverse as those of
D that are as diverse as
E that are diverse as are
OA is A !!!
官方给的理由是:(B)and (E ) imply that the causes are as diverse as this list of causes. That's different from the intended meaning, which is that the list of causes are the causes of the change in water level~~~
这个句子感觉有点绕。原句的意思应该是ozone depletion, glacier melting, and the long-term effects of radioactive contamination是水位变化的唯一三个原因。如果后面有are,我觉得句子就可以改写成这样
。。。is undergoing dramatic changes in water level due to causes that are as diverse as ozone depletion, glacier melting, and the long-term effects of radioactive contamination.意思好像在表达后面的三个事物很diverse,用来类比水位变化原因的diverse.