so heavy as和not as heavy as的区别

问题描述:

so heavy as和not as heavy as的区别
The red suitcase is ________ the black one. I will take the red one to go travelling.
A) as heavy as B) so heavy as
C) not as heavy asD) heavier than
为什么选c啊

so heavy as和not as heavy as的区别就是
前者肯定,后者否定
选c是因为去旅行带较轻的包那as heavy as和so heavy as有什么区别没区别