若堆栈采用顺序存储结构,正常情况下,删除堆栈中一个元素,栈顶指针TOP的变化是()。
A. 不变
B. TOP=0
C. TOP=TOP+1
D. TOP=TOP-1
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The former Soviet state of Georgia today exhibits a diversified economy.
A. a multifaceted
B. a sagging
C. a dissolving
D. an improved
He goes shopping so frequently not because he is rich, but because he enjoys ______ politely.
A. speaking
B. being spoken to
C. being spoken
D. speaking to
To cream a circuit, a conducting wire is attached to an electric cell at one end, and to an electric outlet at the other.
A. battery
B. faucet
C. socket
D. appliance
数据流图是常用的进行软件需求分析的工具,其基本组成包括()。
A. 输入、输出、外部实体和加工
B. 变换、加工、数据流和存储
C. 加工、数据流、数据存储和外部实体
D. 变换、数据存储、加工和数据流