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Class Pauropoda：(少脚纲)如新少脚虫

Class Diplopoda(倍脚纲)如倍脚虫 | Class Pauropoda(少脚纲)如新少脚虫Neopauropus | Class Symphyla(结合纲)如Hanseniella

Class Pelecypoda：斧足纲

双经纲 Class Amphineura | 斧足纲 Class Pelecypoda | 掘足纲 Class Scaphopoda

Class Polychaeta：多毛纲

绦虫纲 Class Cestoda | 多毛纲 Class Polychaeta | 贫毛纲 Class Oligochaeta

Class POLYPLACOPHORA：(多板纲)如石鳖

Class Solenogastre(沟腹纲)如沟腹虫Proneomenia | Class Polyplacophora(多板纲)如石鳖Chitons | Class Monoplacophora(单板纲)如新帽贝Neopilina

Class Priapuloidea：(电鳃纲)如电鳃虫

Class Kinorhyncha(动吻纲)如动吻虫Echinodera | Class Priapuloidea(电鳃纲)如电鳃虫Priapulus | Class Acanthocephala(钩头虫纲)如钩头虫Spiny-headed worms

Class Sarcodina：肉足虫纲

鞭毛虫纲 Class Mastigophora | 肉足虫纲 Class Sarcodina | 纤毛虫纲 Class Ciliophora

Class SCAPHOPODA：(掘足纲)如象牙贝

Class Monoplacophora(单板纲)如新帽贝Neopilina | Class Scaphopoda(掘足纲)如象牙贝Tusks | Class Gastropoda(腹足纲)如蜗牛Snails

Class Symphyla：(结合纲)如

Class Pauropoda(少脚纲)如新少脚虫Neopauropus | Class Symphyla(结合纲)如Hanseniella | Class Merostomata(节口纲)如鲎King crabs

Class Trematoda：吸虫纲

自由生活种类广泛分布在海水和淡水的水域中,少数在陆地上潮湿土中生活. 大部分种类为寄生生活. 全世界约1.2万种,中国已发现近1000种. 按其形态结构及生活习性分为三纲:涡虫纲(Class Turbellaria)、吸虫纲(Class Trematoda)和绦虫纲(Class Cestoda).

Class Trematoda：(吸虫纲)如吸虫

Class Turbellaria(涡虫纲)如涡虫Dugesia | Class Trematoda(吸虫纲)如吸虫Flukes | Class Cestoda(绦虫纲)如绦虫Cestoda

Stretto di Messina：墨西拿海峡

西西里岛最东端的墨西拿(Messina)和仅隔宽3公里的墨西拿海峡(Stretto di Messina)对面的亚平宁半岛靴子尖儿上的圣乔万尼(Villa S. Giovanni)"王小丫一定会奉送一个标志性微笑:"恭喜您,答对了!"

director of operations of National Security Council：国家安全委员会的执行主管

He's been in the papers lately. He's expected to be appointed...|他最近上了报... | director of operations of National Security Council.|国家安全委员会的执行主管 | Really? These are the letters...|是吗? ...