题目内容

If you are interested in the visit, please don’t________to ask us for further information.

A. stop
B. interrupt
C. delay
D. hesitate

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I had expected to be________, but I have to admit the film wasn't as bad as I had feared.

A. disappointed
B. excited
C. accepted
D. respected

Set up in 2008, the business is________right in the city centre, close to the railwaystation.

A. remained
B. located
C. stayed
D. sat

回溯法的特征是()

A. 广度优先
B. 深度优先
C. 自顶向下
D. 自底向上

在用搜索方法求解问题的过程中，为了提高搜索效率，会在搜索过程中使用一种函数来剪去那些不含可行解的分支，这种函数称为（）

A. 目标函数
B. 约束函数
C. 限界函数
D. 递归函数