单项选择题

Which of the following is NOT considered as part of the alimentary system ( )

A．the pancreas
B．the spleen
C．the tongue
D．the cecum
E． the vermiform appendix
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单项选择题
The decussation of pyramid lies in ( )
A．the medulla oblongata
B．the pons
C． the midbrain
D．the diencephalon
E．the telencephalon
单项选择题
The facial artery arises from ( )
A．the brachiocephalic trunk
B．the subclavian artery
C．the common carotid artery
D．the external carotid artery
E．the internal carotid artery
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