活期存折出现下列哪些情况需要换折的（）。
A.存折破损
B.存折磁条损坏
C.存折打印页已满
D.存折磁条记录损坏
参考答案：A, B, C
什么是串音？串音是怎样形成的？
An organization structure that involves various organizational types at various levels is called a （）.
A．p matrix
B．balanced organization
C．composite
D．balanced matrix
