单项选择题
Which of following description is correct for elastic artery and muscular artery? A.
There are only elastic fibers in the wall of elastic artery. B.
There are only muscle fibers in the wall of muscular artery. C.
The wall of elastic artery contains a lot of elastic fibers except muscle fibers. D.
The wall of muscular artery contains a lot of muscle fibers without any elastic fiber.
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