Listen to the conversation and choose the best answer to each of the questions.[音频]What is the woman reading?[音频]
An article about interesting countries.
B. An article about countries’ cultural influence.
C. A book about interesting countries.
D. A book about countries’ cultural influence.
How are the countries listed in the survey?[音频]
According to how popular their food is.
B. According to how different their cultures are.
C. According to how much influence their cultures have.
D. According to how difficult their cultures can be measured.
According to the study, which country has the greatest influence?[音频]
A. France.
B. Italy.
C. Greece.
D. Russia.
用贪心法设计算法的关键是()。
A. 将问题分解为多个子问题来分别处理
B. 选好贪心准则
C. 获取各阶段间的递推关系
D. 满足最优性原理
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