All the following can be inferred from the passage EXCEPT______.

A.The Trust is more interested in protecting the 16th century houses.

B.Many people came to visit the historic houses saved by the Trust.

C.Visitors can get free access to some places owned by the Trust.

D.The Trust has a story which is longer than 80 years.

引起声带内收的原因是（）

A.喉上神经外侧支损伤

B.喉上神经内侧支损伤

C.喉返神经前支损伤

D.喉返神经后支损伤

E.喉返神经全支损伤