B这是完全倒装句。倒装句分为完全倒装和部分倒装上边的句子是完全倒装。部分倒装一般当否定词放在句首时用到。(nor did he)是最简单的部分倒装。还有"not only ,but also","so that" "only"等词组放在句首用部分倒装。举个例子:only he told me did I konw what had happened.Not only did I know his name,but also I know where he come from.