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时髦和时尚是流行文化的核心。()

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敏感性分析研究的是（）对金融产品或资产组合的影响。

A. 多种风险因子的变化
B. 多种风险因子同时发生特定的变化
C. 一些风险因子发生极端的变化
D. 单个风险因子的变化

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设某企业生产某种半成品2 000件，完成一定加工工序后，可以立即出售，也可以进一步深加工之后再出售。如果立即出售，每件售价15元，若深加工后出售，售价为24元，但要多付加工费9 500元，则继续进行深加工的机会成本为()元。

A. 48 000
B. 30 000
C. 9 500
D. 18 000

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Teachers constantly reflect on what they do as a teacher and how their learners learn as

A. controller
B. assessor
C. researcher
D. participant

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What does the author mean by saying "The results suggested that cheating may be becoming

After the previous survey in 2013， more students are found cheating.
B. More cheating students were under the survey this time.
C. No measures are taken to manage the phenomenon of cheating.
D. Most students don"t pay attention to their curricula.

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