( 1. 1)( 1.8)

( 1/8 1)( 1/243)

26、

(5/3)

(3/5)

27. (Level)

(0.24)(0. 12)(0. 125) ( 1.85)

(6/25)(3/25) ( 1/8) (37/20)

(24%)( 125)( 12.5%)( 185%)

28. (Level)

40.044(40)(40.0)(40.04)

9.9945( 10)( 10.0)(9.99)

29、

( 1.35) (0.49) ( 1.49)

30 、( 05B09 12)

Second, judgment.

√、×、×、×