---The film deserves ______ a second time.

---Sorry, I can’t follow you clearly.

---I said that the film is worth_____ again.

A．seeing, seeing

B．seeing, of being seen

C．to be seen, being seen

D．to be seen, to be seen

有关肛提肌的描述，错误的是

A．有加强盆底托力的作用
B．是骨盆底内层的肌肉
C．肛提肌分为耻尾肌、髂尾肌和坐尾肌
D．有加强肛门括约肌的作用
E．一旦损伤坐尾肌，可引起直肠膨出