单项选择题

A.吐温-80>吐温-40>吐温-60>吐温-20
B.吐温-20>吐温-60>吐温-40>吐温-80
C.吐温-80>吐温-60>吐温-40>吐温-20
D.吐温-20>吐温-40>吐温-60>吐温-80
E.吐温-20>吐温-80>吐温-40>吐温-60