A+L and DHA+PQ are highly cost-effective regimens for the treatment of paediatric P. falciparum and P. vivax malaria, respectively, in parts of Papua New Guinea.

在巴布亚新几内亚部分地区，青蒿醚加苯芴醇和二氢青蒿素加哌喹分别是治疗小儿恶性疟原虫疟疾和间日疟的最具成本效益的治疗方案。

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These two principles make the L/C mechanism run at lowest cost, but they bring convenience to L/C beneficiary for fraud.

这两大原则使得信用证机制能以最小的成本运行，但是也为信用证受益人的欺诈提供了便利。

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The Blue Gene/L technology offers a powerful way to study these types of diseases, because it provides a more cost-effective (and faster) way to model the effects of protein folding and misfolding.

Blue Gene/L 技术提供了一种强大的方法来研究这些类型的疾病，因为它能够更加经济高效地（和更快地）建模蛋白质折叠和错误折叠的效果。

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The city would benefit from a siren system, said Larry Meyerhofer, emergency manager at the L.A. Emergency Management Department, but the cost is high.

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