里热证见（）。
A.额上热甚于手心热
B.手心热甚于额上热
C.手足俱冷
D.手足心热甚于手足背
E.尺肤部凉
参考答案：B
下列物质的水溶液，不能使无色酚酞试液变红的是（ ）
A．CaO
B．Ca（OH）2
C．CO2
D．NaOH
In the long-run, after all firms in a perfectly competitive industry have adopted new technology, the:（）
A. price will be set where average variable cost is equal to marginal revenue.
B. price will equal minimum average total cost.
C. individual firm supply will decrease as the cost of implementing technology increases.
