简述技术贸易的特点。
参考答案：
Film has a much shorter history, especially when ________ such art forms as music and painting. [ ]
A. having compared to
B. comparing to
C. compare to
D. compared to
属于面颅骨的是（）
A.下鼻甲骨
B.筛骨
C.蝶骨
D.枕骨
E.颞骨
