Nerve signals may travel through nerve or muscle fibers at speeds as high as two hundred miles per hour.
A.velocities
B.impulses
C.ratios
D.atrocities
正确答案是A
Nerve signals may travel through nerve or muscle fibers at speeds as high as two hundred miles per hour.
A.velocities
B.impulses
C.ratios
D.atrocities
正确答案是A