题目内容

The plural form of gingiva is _________.

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The middle portion of the small intestine is the duodenum.

A. 对
B. 错

Polysialia is the excess secretion of bile.

A. 对
B. 错

The cystic duct carries bile to and from the gallbladder.

A. 对
B. 错

The appendix is attached to the cecum.

A. 对
B. 错

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