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【单选题】
在Excel中，下列选项属于对单元格的绝对引用的是(】A.
B3
B.
%B#2
C.
$B￥2
D.
$B$2
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【单选题】Constant returns to scale means that, given any constant x > 0
A.
xzF(xK, xN d)= zF(xK, xNd) .
B.
xzF(xK, xN d) > zF(xK, xNd) .
C.
xzF(xK, xN d) < zF(xK, xNd) .
D.
xzF(xK, xN d) = zxF(K, Nd) .
【简答题】规模收益不变（Constant returns to scale）
【多选题】Which of the following production functions exhibits constant returns to scale?
A.
q = K + L
B.
q = 3K+2L
C.
q = KL
D.
q = KL 0.5
【单选题】Constant returns to scale indicate that a firm is experiencing:
A.
per unit costs of production that are decreasing as the scale of output expands.
B.
per unit costs of production that remain stable as the scale of output expands.
C.
per unit costs of production that are increasing as the scale of output expands
D.
an increasing marginal product.
【单选题】If a production function exhibits constant returns to scale, doubling all of the inputs
A.
more than doubles output due to the catch-up effect.
B.
has absolutely no impact on output because output is constant
C.
less than doubles output due to diminishing returns
D.
doubles output.
【单选题】When a firm experiences constant returns to scale,
A.
long-run average total cost is unchanged, even when output increases.
B.
long-run marginal cost is greater than long-run average total cost.
C.
long-run marginal cost is less than long-run average total cost.
D.
the firm is likely to experience coordination problems.
【单选题】Constant returns to scale indicate that a firm is experiencing:
A.
per unit costs of production that are decreasing as the scale of output expands.
B.
per unit costs of production that do not vary with the scale of output.
C.
per unit costs of production that are increasing as the scale of output expands.
D.
A decreasing marginal product.
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