企业研发费用在企业所得税前加计扣除比例是否有调整
http://file.tax100.com/o/202308/20/312_1692480304580.gif?width=520&size=3341949来源：国家税务总局长春市税务局
http://file.tax100.com/o/202308/20/185_1692480305422.png?width=1080&size=275375
http://file.tax100.com/o/202308/20/818_1692480305633.gif?width=856&size=8626317
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