问题
单项选择题
In （ ） , the only element that can be deleted or removed is the one that was inserted most recently.
A．a line
B．a queue
C．an array
D．a stack
答案
参考答案：D
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In （ ） , the only element that can be deleted or removed is the one that was inserted most recently.
A．a line
B．a queue
C．an array
D．a stack
参考答案：D