某企业购置一台新机器,投资40万元,使用寿命为4年,无残值,采用直线法折旧。预计每年可获税前利润5万元,税率为40%,则年现金净流量为( )
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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