下列关节中，具有囊内韧带的是( )
A．肘关节
B．膝关节
C．肩关节
D．桡腕关节
E．颞下颁关节
参考答案：B
The CCTV Spring Festival Gala is a big stage, ________ many new actors or actresses are to become famous.[ ]
A．where
B．when
C．that
D．which
矢量数据层与矢量数据层进行数据合并与交错的计算称为( )分析。
A．叠合
B．对比
C．网格
D．临近
