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The inguinal canal
A. is located immediately superior to the medial half of the inguinal ligament
B. is formed by the muscular、aponeurotic and fascial layers of the abdominal wall
C. the inferior wall is formed by the falx inquinalis
D. the superior wall is formed by the inguinal ligament
E. the anterior wall is formed by the external oblique apo-neurosis and a part of the internal oblique muscle fibers
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