E 错在哪儿...

function as teeth --> they work as an acceptable substitute for teeth
function as teeth do --> they work in the same way as teeth do - same mechanics, same action, etc. this is not what is meant.

d， greater than 不是as，看选项时就忘记这些不同的点了。。。。不然可以做对

Even as。。。。和still似乎是重复表述错误

The only real error in choice C is "proof for...", as you noticed. It's not decidedly more wordy than the correct version.

dependent on..---adjective modifier modifies a single tree;
depending on...---modifies verb

A，divided on whether significant warming will occur anddivided on what impact will it have if it does，改成what impact it will have，whether做连词，后面接从句构成divided的宾语从句，不用从句疑问句形式；what impact做divided的宾语，it will have相当于省略了that，作定语从句修饰what impact，不用疑问句形式
E用would是因为divided是过去式，would表示从过去看的将来

A: a resort hotel不属于ecological service, 即便是located in an area for natural beauty

1、do sth during……表示在一个时间范围里发生某动作，for回答how long的问题，不代表完成时态；
如：
Please remain seated during the performance.
There are extra flights to Colorado during the winter.
I'll stay here for a week.
同理，economic grow during 10000 years要比 for 10000 years好
2、Higher/lower Growth，grow faster/more slowly

Researchers also measured land-tenure security: in Tawahka society, kinship ties are a more important indicator of this than are legal property rights, so researchers measured it by a household’s duration of residence in its village. They found that longer residence correlated with more adoption of improved plant varieties but less adoption of chemical herbicides.
land-tenure security->kinship->duration of residence

E、while they are denouncing big government——supporting specific government programs，while做从属连词，后面的supporting只能做从句（加一个and），while they are denouncing and supporting，缺乏主句。不能补足成while they are denouncing big government——they are supporting
A、they denounce big government, while supporting specific government programs。 supporting 做伴随状语，表示伴随发生的情况，他们谴责大政府，尽管伴随着还支持特定的政府项目

cutting back强调动作的过程，recommending cutting back 改成recommending the cutting back

1、until表示动作的持续，如wait until the rain stops.；You're not going out until you've finished this. ；Until now I have always lived alone.
It take sb a period of time动作时take，不是take time这个动作持续到青蛙成年，是to reach adulthood take time
2、unlike/like的比较比较的内容相同或不同的部分，D，restricted to deeper bodies of water做状语，修饰黄脚蛙长大成年这个动作，属于比较的一部分，但前面被比较的内容并不包含被比较的蛙是不是被限制在更浅的水里了，比较内容不适当；E，and so是并列连词连接独立的句子，她与unlike是并列的，不会被包含进unlike的内容里面，E对

1、C，The Nobel Prize was awarded to three scientists for their discovery that plastic can be made electrically conductive，and this advance led ……
and+独立的句子，要么跟前面的独立的定语从句discovery that……并列，要么跟主句prize was awarded并列，两个并列都不对。同时，如果跟discovery that并列，作为第二个从句，前面有插入语，that不能省略。C错

2、this advance指代前面的同义词，如New 'Nano-papers" incorporate fibers that give these materials strength.
B，this advance leading做独立主格，伴随plastic can be made conductive，伴随状语如果没有加before/after等表示动作先后的词语，如After walking by the chocolates so many times, Roger finally had to eat one.，则要求两个动作发生在同一个时间框架里。塑料可以做导体和这个发现导致……不是一个时间框架里的事情，B错，同理D错

如果这题的E是对的，而且解释为可以自动补全，那之前694那题的D就是瞎比解释。。。都是as...to do as they are to do...。一个告诉我是对的，一个告诉我to do不能和they比较？？？

as a result of 后面接简单名词，如：She died as a result of her injuries.
接复杂名词时，用with the result that，as a result或because+从句的形式，
如：
The farm was flooded, with the result that most of the harvest was lost
He made one big mistake, and, as a result, lost his job.

查了牛津和朗文，都有research into的用法，排C不能靠research及物动词，只能靠while错的，不然就是瞎猫碰死耗子呗

a means to +n.
a means of/for 都是错误的，-曼哈顿

E，不能说rocks were scattered by its force a degree，应该说rocks were scattered by its force to a degree