It was noted that after the injury the patient's face on the right side was flushed due to dilation of the blood vessels. The lack of vasoconstriction was due to interruption of what fibers somewhere along their course?
A.
Somatic afferent
B.
Somatic efferent
C.
Parasympathetic
D.
Sympathetic
E.
All of above
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【单选题】_______she is not so cheerful________she used to be?