| 1. | It is debatable whether it is cost-effective .
它的成本效益如何，尚无定论。 |
| 2. | Actual cost reflects the performance of the firm .
实际成本反映了一个企业的效益。 |
| 3. | The mechanical advantage of the machine is: (600n/150)=4 .
机器的机械效益是：（600牛顿150牛顿）4。 |
| 4. | In the short run, revenues will increase and profits will improve .
在短期内收益将增加，并且效益也将提高。 |
| 5. | To evaluate the effects of drift in the classical sense, the population size should be known .
要用正统含义估计播迁的效益，就应知道种群的大小。 |
| 6. | Economists adjust current prices for the rate of inflation in order to distill out the real gains in production .
经济学家通过扣除通货膨胀因素，可以得出生产的实际效益。 |
| 7. | The data are not usually analyzed in such a way as to distinguish between interfamily and intrafamily section gains .
数据往往不足以来分析区别家系间和家系内选择效益的方式。 |
| 8. | Subsidies can also be cost-effective when they are concentrated on food that is eaten mainly by the poor .
如果把补贴集中于主要是穷人消费的粮食品种上，补贴的成本效益也是好的。 |
| 9. | Poverty and hunger discusses a variety of cost-effective ways to increase food security in the short term .
《贫穷与饥饿》讨论了在短期中提高粮食保障水平的各种各样注意成本效益的方法。 |
| 10. | If less productive opportunities are exploited by farmers before productive ones, something else is wrong .
如果农民选取的不是效益较大的机会而是效益较小的机会，那就是其他某些地方出了问题。 |
