胃内腺体发达，分布有大量的单管状腺和复管状腺。

The glands in stomach were well developed, which were composed of simple tubular glands and tubulocinar glands.

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胃内腺体发达，分布有大量的单管状腺和复管状腺。

The glands in stomach were well developed, which were composed of simple tubular glands and tubulocinar glands.

youdao