会计软件系统必须对会计数据有充分的安全保护措施。 ( )
参考答案：对
Soon children in the camp had many new friends, they shared food, stories and projects.
A．for which
B．with whom
C．of which
D．to whom
影响财务杠杆系数的因素主要包括（）。
A.息税前利润
B.所得税税率
C.企业的资本结构
D.长期资本规模
