若线性表的长度经常发生变化，那么该线性表应采用的存储结构是 【1】 。
参考答案：链式存储结构
These shoes look very good. I wonder __________.
A．how much cost they are
B．how much do they cost
C．how much they cost
D．how much are they cost
前厅部在饭店中的重要作用有哪些？
