先決問題 主要問題 主要問題準據法國衝突法則 法院地衝突法則 分別處理 民事訴訟之目的 實體利益 程序利益 The preliminary question The principal question The conflicts rules of the state of lex causae The conflicts rules of forum state The approach of individual case to process The objective of civil litigation The substantive interest The procedural interest