There _ a small house here 20 years ago.[ ]
A. is
B. are
C. was
D. were
答案：C
占位性病变呈膨胀性生长，增强扫描强化明显（）
A.脂肪瘤
B.鼻咽纤维血管瘤
C.神经鞘膜瘤
D.鼻咽癌
E.息肉
