[求助]还有一道也觉得有疑问，请教一下

homowing

Q30:

Most insomnia is not an illness or a physical condition so much as a symptom of another problem that may simply be a reaction to certain medications, anxiety about travel, or stress before a job interview.

an illness or a physical condition so much as a symptom of another problem that may simply be a reaction to certain medications

an illness or a physical condition so much as symptomatic of another problem that may be a simple one, like a reaction caused by certain medications

so much an illness or a physical condition but a symptom of another problem that may be as simple as when certain medications cause a reaction

so much an illness or a physical condition, but it is a symptom of another problem, maybe a simple one like certain medications causing a reaction

so much an illness or a physical condition but symptomatic of another problem, maybe simply a reaction to certain medications

答案是E，但我觉得C好象更好？C的an illness or a physical condition与a symptom of another problem对称；后面cause a reaction与anxiety about 、 or stress 做动词对称。

homowing

Q33:

When an active tooth in the shark’s jaws is lost or worn down, many spare teeth lie in seemingly limitless reserve, each of which are ready to slide into the appropriate position.

When an active tooth in the shark’s jaws is lost or worn down, many spare teeth lie in seemingly limitless reserve, each of which are ready to slide into the appropriate position.

Whenever an active tooth is lost or worn down, many spare teeth lie in seemingly limitless reserve in the shark’s jaws, which are each ready to slide into the appropriate position.

Many spare teeth lie in seemingly limitless reserve in the shark’s jaws, each one of which are ready to slide into the appropriate position when an active tooth is lost or worn down.

The many spare teeth lying in seemingly limitless reserve in the shark’s jaws, each one of which is ready to slide into the appropriate position whenever an active tooth is lost or worn down.

In the shark’s jaws, many spare teeth lie in seemingly limitless reserve, each one ready to slide into the appropriate position whenever an active tooth is lost or worn down.

答案是A，但是each of 不是应该单数的吗？

shellsnow

c 中 as simple as 前后联结的修饰对象必须一致，logical comparison. c 中， a symptom of another problem...as simple as when...? 明显是逻辑错误

shellsnow

第33题不明白，同问，e为什么不对，a中为什么用each of which are???

homowing

多谢shellsnow，有没有高人解答一下33题啊？