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【单选题】
理性只是一种行为而非结果,是指( )A.
人们的目标选择达到最优
B.
偏好形成过程的最优
C.
影响偏好变化的最主要因素
D.
偏好究竟是怎样的
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A.
at once
B.
for once
C.
to once
D.
hurry up
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