—Do you know anything about the players of our school football team?

—Yes. They are _____ young boys between the age of thirteen and fifteen. [ ]

A. most

B. mostly

C. almost

D. at most

总分类账户余额试算平衡表中的平衡关系有（ ）。

A．全部账户的本期借方发生额合计=全部账户的本期贷方发生额合计

B．全部账户的期初借方余额合计=全部账户的期末贷方余额合计

C．全部账户的期初借方余额合计=全部账户的期初贷方余额合计

D．全部账户的期末借方余额合计=全部账户的期末贷方余额合计