winter differs from the other seasons in that it is not as warm as spring.

问题描述:

winter differs from the other seasons in that it is not as warm as spring.
1\这是个什么从句?
2\in that 在从句里作什么成份?
3\in that 可以用别的词代替么?

原因状语从句
连词
for,as,since,becauce,as a result of