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【单选题】
导游人员处于旅游接待工作的中心位置、异游人员所从事的工作本身具有A.
导游手段科技化
B.
导游职业自由化
C.
导游方法多样化
D.
导游内容高知识化
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【单选题】Which one is wrong about classification and regression?
A.
Regression analysis is a statistical methodology that is most often used for numeric prediction.
B.
We can construct classification models (functions) without some training examples.
C.
Classification predicts categorical (discrete, unordered) labels.
D.
R egression models predict continuous-valued functions.
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