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Which of the following can contribute to business efficiency？
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在缺页处理过程中，操作系统执行的操作可能是
某化妆品厂1999年3月销售一批化妆品；适用消费税税率30%，不含增值税价款100万元，货款已收到，货已发出，增值税税率为17%，同时两个月前收取包装物租金2340元，押金 23400元，购销双方约定，两个月归还包装物并退还押金，但购货方违约逾期未归还包装物，化妆品厂没收押金。
根据以上资料回答下列问题(本月无进项税额)
收取包装物租金应纳的增值税为()元。
According to government statistics, in the United States, there are over 110 million cars and "more people" means "more cars". By the end of twenties of next century, the population of the United States will have doubled that of today and the number of automobiles will be doubled as well. And in twenty-year's time the per capita income will also be 2.5 times higher than it is. If this increase income is spent on more and larger automobiles, larger houses, and increased consumption of other material goods, the results could cause catastrophic resource exhaustion, and pollution. Take the increase of the consumption of oil for instance. The consumption is so huge that the reserves might last only a decade or two if not supplemented by imports.
Ten years ago it appeared that nuclear power would solve the anticipated energy crisis. Although supplies of uranium fuel were known to be limited and might become exhausted in half a century, the nuclear power plant has for a long time been a favorite project. But work on it has met with grave problems. The fear of possible atomic explosion and the problem of disposing of polluting by-product waste have slowed down the construction of further nuclear plants. Eventually atomic technology may be able to control these problems, but at present there seems to be little agreement among atomic scientists about when this can be achieved.
Which of the trend is true？
某人申购了10 000份基金，申购时单位基金净值是08元，申购费率为1％。经过6个月后赎回。此时单位基金净值15元，赎回费率0.8％。若不考虑资金的时间价值，则该投资者的投资收益为()元。
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