栈是一种对所有插入、删除操作限于在表的一端进行的线性表,是-种后进先出型结构。
A. 对
B. 错
两个栈共享一片连续内存空间时 ,为提高内存利用率,咸少溢出机会,应把两个栈的栈底分别设在这片内存空间的两端。
A. 对
B. 错
Mr. Smith, there's been ______ and your luggage is still here.
A. oversight
B. an oversight
C. ove-rsight
D. an over-sight
The room is _____ and there is someone's hair on my bed.
A. smell
B. smelly
C. a smell
D. a smelly