灸法的作用不包括()。
A.温散寒邪
B.通经活络
C.防病保健
D.回阳固脱
E.伤暑
参考答案:E
A.白天:太阳能→内能→电能
B.白天:太阳能→电能→化学能
C.晚上:化学能→电能→太阳能
D.晚上:化学能→电能→化学能
Which of the following concentration ratios are most likely to be associated with a perfectly competitive industryFour-firm concentration ratio Herfindahl-Hirschman Index() ①A.125 1000 ②B.85 25 ③C.25 100
A. ①
B. ②
C. ③