— How lions are there? — There are four.[ ]
A. many
B. much
C. often
答案：A
The boys are _________.[ ]
A. taken good care of
B. taken good
C. taken good care
D. taken care
下列描述中，不是线性表顺序存储结构特征的是( )。
A．不便于插入和删除
B．需要连续的存储空间
C．可随机访问
D．需另外开辟空间来保存元素之间的关系
