填空题
At least how many languages must a stewardess be able to speak
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【参考答案】
three
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单项选择题
What factor is NOT mentioned in choosing a forecasting method
A.Imagination of the forecaster.
B.Necessary amount of information.
C.Practical knowledge of the forecaster.
D.Degree of difficulty involved in forecasting.
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单项选择题
A.processesB.actsC.modes.D.procedures
A.processes
B.acts
C.modes.
D.procedures
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