在括号内填入恰当的字。
候 猴
等( ) 小( ) 小时( ) ( )鸟 ( )子 猕( )桃
候 猴 候 候 猴 猴
— Why do you want to go to the wetland?
— _____ the different kinds of birds living there.
A. Keeping
B. To study
C. To keep
D. Study
脊柱动脉瘤样骨囊肿好发于()
A.椎体
B.椎管
C.附件
D.椎旁
E.椎间孔