NO.PZ2018062017000008
问题如下：
In a perfectly competitive market, a firm's breakeven point is where:
选项：
A.Market price level is just at the minimum point of average total cost curve.
B.Market price level is just at the minimum point of average variable cost curve
C.Market price level just covers the average fixed cost.
解释：
A is correct.
The breakeven point for perfect competition is where the market price level intersects with the minimum point of the average total cost curve.
考点： breakeven point
解析：完全竞争市场条件下，厂商的盈亏平衡点应该等于市场价格与平均总成本相交的那一点，所以A选项说法正确。
B选项的说法其实是指厂商的停止营业点而非盈亏平衡点，不入选。
C厂商的收益不仅要覆盖固定成本，还要覆盖可变成本，如此才能达到盈亏平衡，不入选。
rt
