结合所示图像，精索内筋膜对应于腹壁的哪一层（）
A.Scarpa筋膜
B.腹横筋膜
C.腹横肌腱膜
D.腹内斜肌腱膜
E.腹外斜肌腱膜
参考答案：B
My father prefers to stay at home rather than ______ on May Day. [ ]
A. travel
B. to travel
C. travelling
D. travels
正常的寰枕关节可以伸展()
A．15°
B．25°
C．35°
D．45°
E．>50°
