Tom took a taxi to the airport, only ________ his plane high up in the sky.

A．finding

B．being found

C．to find

D．to have found

腱鞘囊肿（）

A.最常见于腘窝

B.因关节囊或腱鞘结缔组织发生黏液变性和液化所致

C.关节滑膜细胞瘤样反应性增生，与局部损伤性出血有关

D.起源于腱鞘滑膜组织，主要由组织细胞样滑膜细胞及由此融合的多核巨细胞组成

E.成于成骨性肉芽组织