Out of the crowded bus _____, who was dressed in a black suit and waved to a woman. [ ]

A. a tall man in his thirties stepped

B. stepped a tall man in his thirties

C. did a tall man in his thirties step

D. did a tall man step in his thirties

在每个时间段内，将利率敏感性资产减去利率敏感性负债，再加上表外业务头寸，就得到该时间段内的重新定价( )。

A．价值

B．缺口

C．头寸

D．敞口