不论是“同病异治”还是“异病同治”，该治法的依据是（）。
A.体征的变化
B.病机的变化
C.症状的变化
D.病的变化
E.状态的变化
参考答案：B
在享利表达式中m随温度升高而（）。
A.不变
B.下降
C.上升
D.成平方关系
Which of the following most accurately describes the relationship between the average total cost (ATC) curve and the average variable cost (AVC) curve The vertical distance between the ATC and AVC curves:（）
A. decreases as output increases.
B. increases as output increases.
C. remains constant as output increases.
