It is believed that these biological and morphological changes are accompanied by differential gene expression pattern at the various stages, which result in special metabolism and development.

这种不同发育阶段的形态学上和生物学上的变化必然伴随着不同的基因差异表达模式，导致血吸虫独特的代谢和发育过程。

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File information resources exploitation are placed in a network environment, make the file information resources development of object, scale, means, pattern had great changes.

档案信息资源的开发被置于网络环境下，使档案信息资源开发的对象、规模、手段、模式等都发生了重大变化。

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File information resources exploitation are placed in a network environment, make the file information resources development of object, scale, means, pattern had great changes.

档案信息资源的开发被置于网络环境下，使档案信息资源开发的对象、规模、手段、模式等都发生了重大变化。

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