公式： f(x)=x⋅Φ(x)≈0.5x(1+tanh[2/π(x+0.044715x3)])
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全要素生产率是要素投入转化为产出的总体效率，决定着经济内涵型发展程度和潜在增长率高低，体现着经济发展的结构和质量。
But shares in the streaming company had fallen since it made its offer, an indication that investors were sceptical of the plan.