2. Which of the following is not involved in the patellar (knee-jerk) reflex?
(A) Brain
(B) Spinal cord
(C) Sensory neurons
(D) Motor neurons
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統計: A(14), B(1), C(1), D(0), E(0) #3425971
統計: A(14), B(1), C(1), D(0), E(0) #3425971