sentence 1: How do I build my profile for top B-schools?
 sentence 2: How do I build my profile for Harvard, Wharton, INSEAD etc.? sentence 1: What is the difference between molecular mass and molar mass?
 sentence 2: Why is molar mass same as average atomic mass? sentence 1: What is difference between variance and standard deviation?
 sentence 2: What is the difference between the representation of variance and standard deviation? sentence 1: Why can't I comment on some people's posts?
 sentence 2: Why can't you comment on answers anymore?
same meaning
not same meaning
same meaning
same meaning