第11题: [单项选择]What did the woman do A. She built the house. B. She ordered a painting for the house. C. She hired someone to paint the house. D. She hid the house. 参考答案:C 答案解析:[听力原文] M: Your house looks nice. What did you do to it W: I had it painted.
第30题: [单项选择]算法的时间复杂度是指( )。 A. 执行算法程序所需要的时间 B. 算法程序的长度 C. 算法执行过程中所需要的基本运算次数 D. 算法程序中的指令条数 参考答案:C 答案解析:[解析] 所谓的算法时间复杂度是指执行算法所需要的工作量,可以用算法在执行过程中所需基本运算的执行次数来度量算法的工作量。