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1·If it is unlikely to obtain sufficient taxable income to offset against the benefit of the deferred income tax asset, the carrying amount of the deferred income tax assets shall be written down.

如果未来期间很可能无法获得足够的应纳税所得额用以抵扣递延所得税资产的利益，应当减记递延所得税资产的账面价值。

2·The deductible losses, which can be utilised against the future taxable profit in accordance with tax law, are regarded as temporary differences and a deferred tax asset is recognised accordingly.

对于按照税法规定能够于以后年度抵减应纳税所得额的可抵扣亏损，视同暂时性差异确认相应的递延所得税资产。

3·Introduce the different types of contra-asset accounts related to Accounts Receivable: Allowance for Doubtful Accounts (ADA), Allowance for Returns, and Deferred Income Liability.

介绍与应收款项相关的各类资产备抵科目：备抵可疑帐户（ADA），备抵销货退回，以及递延所得。