[針灸學(xué)]在胸部，距前正中線4寸的經(jīng)脈是（�。�

原題:
[針灸學(xué)]在胸部，距前正中線4寸的經(jīng)脈是（�。�

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選項:
A.足少陰腎經(jīng)
B.足陽明胃經(jīng)
C.手太陰肺經(jīng)
D.足太陰脾經(jīng)
E.手厥陰心包經(jīng)
答案：
B