题目内容

下列有关状态空间描述错误的是（）

A. 在执行搜索时必须先生成完整的状态空间
B. 状态空间代表了搜索过程中可能遇到的各种状态
C. 通常可以用图表示状态空间
D. 状态空间中可能存在多个目标结点

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下列关于启发式搜索正确的是（）

A. 启发式搜索算法中，下级结点与目标结点的相似度越高则越应被优先搜索
B. 在八数码问题中，若定义启发函数的值为所有错牌与其正确位置的直线距离之和，则该算法为A*算法
C. 深度优先搜索是一种启发式搜索算法
D. 启发式搜索算法不必考虑从初始结点搜索到当备选结点的代价

下列关于博弈搜索正确的是（）

A. 通常启发式搜索算法可以直接应用于博弈搜索
B. 极大极小博弈搜索算法可直接用于国际象棋
C. AlphaGo使用α-β剪枝算法战胜了人类围棋冠军
D. “深蓝”计算机主要采用α-β剪枝算法

Directions:Each of the following statements contains information given in one of the paragraphs in Text A, Unit7. Read the text, and identify the paragraph from which the information is derived.1.When we are no longer honest the positive and long-lasting bonds of trust between us disappear and we all suffer. (Para._)2.If students are found copying other people's work or cheating in any way, they will at once be forced to leave school permanently. (Para._)3.Travelers stole so many towel last year that a big hotel chain had to spend $3 million on new towels. What is particularly troubling are the reports about increasing student dishonesty around the world. (Para._)4.Equally importantly, not only the dishonest person but also other people suffer from the harmful effects of dishonesty. (Para._)5.Nowadays, students don't need to spend a long time "stealing”online papers and ideas to be used in their own term paper.(Para._)6.Noticing more and more dishonest deeds in today's society, people sometimes suggest that in the good times of the past.(Para._)7.Some people are worried that the Internet, which was once described as the best learning tool, could become the most effective means of cheating. (Para._)8.But are these reports correct and exact or do they make the situation look worse than it really is?(Para._)9.Students need to remember these very stories when they are tempted to cheat. (Para._)10.And the reports show that immoral and dishonest behaviors are so common worldwide that the world may become less healthy and less comfortable to live in.(Para._)

HK1-15型号中，HK为类组代号，表示（），15为基本规格代号，表示（）。