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问题 单项选择题

综合反映人群健康状况的指标是

A．净再生育率
B．生命素质指数(PQLI)
C．伤残调整生命年(DALY)
D．年龄别低身高比例
E．新生儿低体重比例

答案

参考答案：B

单项选择题

A recent ad for a Roth IRA includes the statement that if a person invests $ 500 at the beginning of each month for 35 years, they could have $1000000 for retirement. Assuming monthly compounding, what annual interest rate is implied in this statement（）

A. 6. 988%.

B. 7.411%.

C. 7.625%.
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判断题

生产类型就是指生产批量。
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