俗话说“一母生九子，连母十个样”，体现了生物多样性的哪个层次（ ）

活板

    板印书籍，唐人尚未盛为之。五代时始印五经，已后典籍皆为板本。

    庆历中有布衣毕昇，又为活板。其法：用胶泥刻字，薄如钱唇，每字为一印，火烧令坚。先设一铁板，其上以松脂、蜡和纸灰之类冒之。欲印，则以一铁范置铁板上，乃密布字印，满铁范为一板，持就火炀之，药稍熔，则以一平板按其面，则字平如砥。若止印三二本，未为简易；若印数十百千本，则极为神速。常作二铁板，一板印刷，一板已自布字，此印者才毕，则第二板已具，更互用之，瞬息可就。每一字皆有数印，如“之”“也”等字，每字有二十余印，以备一板内有重复者。不用，则以纸帖之，每韵为一帖，木格贮之。有奇字素无备者，旋刻之，以草火烧，瞬息可成。不以木为之者，文理有疏密，沾水则高下不平，兼与药相粘，不可取；不若燔土，用讫再火令药熔，以手拂之，其印自落，殊不沾污。

    昇死，其印为予群从所得，至今保藏。

根据首字母提示和汉语提示写出单词。
        Mr Smith usually gets up late on the w ____     . After he gets d____   , he e____     for an hour. He thinks it's very     ____      （重要的）to do sports. Then he has breakfast   ____   (迅速地). He likes talking with other p____      , so he often goes to the park to talk with his friends in the afternoon. But sometimes he has to go to the hospital, because he has some bad    ____   （牙齿）in his mouth. It's t ____  (非常讨厌的)!  Mr Smith likes singing, too. He wants to be a   ____   （音乐家）. He hopes his dream can come t ____  one day.