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【单选题】
OSI/RM 的物理层协议规定了四个特性,其中定义接口形状、尺寸的内容属于A.
机械特性
B.
电气特性
C.
功能特性
D.
规程特性
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举一反三
【单选题】On the break even point,
A.
The price is equal to firm’s average variable cost.
B.
The price is equal to firm’s average cost.
C.
The price is equal to firm’s average fixed cost.
D.
The price is equal to firm’s total variable cost.
【简答题】The break-even point is the sales level at which operating income is zero and revenues equals total expenses.
【单选题】If cost behaviour stays the same but sales volume increases 20%, what will happen to break-even point in revenue dollars and to margin of safety revenue dollars?
A.
Break-even sales remain the same with margin of safety increasing
B.
Break-even sales increaes but margin of safety remains the same
C.
Break-even decreases with margin of safety decreasing
D.
Break-even sales and margin of safety remain the same
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