문법의신 556쪽

as long as = so long as : ~하는 한(조건) , ~만큼 긴, 길게(원급비교)

as far as = so far as : ~하는 한(정도) , ~만큼 멀리(원급비교)

1. as long as 말고도 so long as 가  접속사 역할을 한다는 뜻인가요?

as far as 말고도 so far as 가 접속사 역할을 한다는 뜻인가요?

2. as long as 말고도 so long as 가 원급비교에서 쓰일수 있다는 뜻인가요??

as far as 말고도 so far as 가 원급비교에서 쓰일수 있다는 뜻인가요??

3. Coffee that at its best in taste and aroma with Swiss deep roasting technology. Rich and refreshing signature taste of coffee from our cafe is as romantic as a trip to a Europe.

광고에 나와있는 문장인데요,,, that은 문법적으로 필요없는것 아닌가요??ㅜ~