Well I already read the official explanation for this question and found out that the issue here is really subtle meaning between "so...as to" and "so...that"
The original sentence is
Technically, “quicksand” is the term for sandthat is so saturated with water as to acquire a liquid's character.
The intended meaning of this sentence is to explain quicksand as the sand saturated with waterat a certain degree . The issue being tested here is how to correctly convey the degree
...
The original sentence is
Technically, “quicksand” is the term for sandthat is so saturated with water as to acquire a liquid's character.
The intended meaning of this sentence is to explain quicksand as the sand saturated with waterat a certain degree . The issue being tested here is how to correctly convey the degree
...
