题目内容

决策树的基本原理是以_______为基础,进行最佳选择决策。

A. 损益矩阵
B. 客观概率
C. 可行方案
D. 期望值

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沟通、理解、激励下属的管理技能属于_____。

A. 技术技能
B. 诊断技能
C. 人际关系技能
D. 分析技能

What is one of the challenges facing the American economy?

A. Decreasing productivity.
B. People's reluctance to spend.
Competition from overseas.
D. Slack trade activities.

【C10】

A. by
B. on
C. under
D. over

听力原文:W: The morning paper says the space shuttle is taking off at 10 a.m. tomorrow.
M: Yeah, as just another one of this year's routine missions. The first mission was undertaken a decade ago and broadcast live then worldwide.
Q: What can we infer from this conversation?
(17)

A. This year's shuttle mission is a big step in space exploration.
B. The shuttle flight will be broadcast live worldwide.
C. The man is excited at the news of the shuttle flight.
D. The man is well informed about the space shuttle missions.

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