正因为税收会计的重要性，所以国家对税收会计规定了严密的制度。
Because of the importance of Tax Accounting, the system of it is strict.
一个有了完善而又严密的内部控制制度的单位，必然效率很高，运转正常，能很好地实现预定目标。
One that has a prefect and tight inter control system must have high efficiency, turn round normally and could complete predetermined target very well.
在合理设计合约和建立严密的风险监控制度和体系的基础上，适时推出股指期货交易是明智的选择。
It is very wise to introduce stock index futures transactions appropriately depending upon on the reasonable contract design and establishing prudent risk supervising system.
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