—How much are the pants?

—_______ twenty dollars. [ ]

A. It has

B. It is

C. They have

D. They are

国库存款结息期内如遇利率调整（），以结息日挂牌的活期存款利率结计利息。

A、分段计息

B、调高利率分段计息

C、调低利率不分段计息

D、不分段计息