(1/4)∧ 这里是几次方啊?我假设是-2次方吧
(1/4)^-2一(1/27)∧-1/3-625∧0.25
=16-[3^(-3)]^1/3-(5^4)^0.25
=16 -1/3-5
=11-1/3
=32/3