国内最早开办的个人贷款业务是（）。
A.质押贷款
B.抵押贷款
C.信用贷款
D.保证贷款
参考答案：A
15. The hiding man made a hole in the wall ______ he could observe the outside.
A．in which
B．by which
C．through which
D．with which
车辆伤害事故包括（）、（）、（）和群死群伤事故。
