In operator-precedence parsing, we define three disjoint precedence relations between certain pairs of terminals. a <∙ b b has higher precedence than a a ≒ b b has same precedence as a a ∙> b b has lower precedence than a
【简答题】Algunos se interesan ............. la economía y el comercio y dicen que, dentro ............. esta área, se dedicarán ............ comercio exterior.