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1·The design of organization structure and management work in all the stages of life cycle in AVEs is discussed.

对虚拟企业的组织结构的设计及虚拟企业的生命周期各个阶段的管理工作进行了讨论。

2·DNA hybridization techniques have been widely used in aves, based on which a new avian classification system was born.

DNA杂交技术曾在鸟类中有过大规模的应用，并由此诞生了一套新的鸟类分类系统。

3·It is well known that modern aves lack dentition unlike their toothed ancestors of the Jurassic and cretaceous periods.

众所周知现代鸟类不长牙齿，而其侏罗纪和白垩纪的祖先则长有牙齿。

4·It is well known that modern Aves lack dentition, unlike their toothed ancestors of the Jurassic and cretaceous periods.

众所周知现代鸟类不长牙齿，而其侏罗纪和白垩纪的祖先则长有牙齿。

5·But small businesses would prefer to be taxed only on profits, not on premises or staff, since at least it's money you've made, says Andrew Aves, the FSB's organiser for Kent and Medway.

但是，小企业更愿意只对利润征税，而不对营业处所或工作人员征税，因为“至少它是你已经挣得的钱”，肯特州和梅德韦的小企业联合会组织者安德鲁说。

6·By using the concept of germinal epithelium, the researches on the gonadal development of Pisces, Aves and Mammalia were unifying to some extent then their characters were convenient for compared.

使用“生殖上皮”这一概念，一定程度上将鱼纲和鸟纲，哺乳纲的性腺发育统一起来，便于比较它们的异同。

鸟类

1·DNA hybridization techniques have been widely used in aves, based on which a new avian classification system was born.

DNA杂交技术曾在鸟类中有过大规模的应用，并由此诞生了一套新的鸟类分类系统。

2·It is well known that modern aves lack dentition unlike their toothed ancestors of the Jurassic and cretaceous periods.

众所周知现代鸟类不长牙齿，而其侏罗纪和白垩纪的祖先则长有牙齿。

3·It is well known that modern Aves lack dentition, unlike their toothed ancestors of the Jurassic and cretaceous periods.

众所周知现代鸟类不长牙齿，而其侏罗纪和白垩纪的祖先则长有牙齿。