58.It was she，a Baltimore printer，who published the first official copies of the Declaration，the first copies that included thenames of its signers and therefore heralded the support of all thirteencolonies．

(It was…who为强调句；the firstcopies为前面the firstofficial copies的同位语)

就是她，一位巴尔的摩的印刷商，出版了《独立宣言》的最早的官方版本，即包括《独立宣言》签署者名字并因此预告所有13个殖民地的支持的早期版本。

分句1：it was…

分句2：who publish…

分句3：the first

1和2嵌套

2和3嵌套