以下业务中属于商业银行表外业务的是 ( )
A．结算业务
B．信托业务
C．承诺业务
D．代理业务
参考答案：C
The driver was at______loss when________word came that he was forbidden to drive for speeding. [ ]
A. a; the
B. /; /
C. the; the
D. a; /
背斜和向斜有什么特征？
