PISA是由经济合作与发展组织国家(Organization for Economic Cooperation and Development, or OECD)协调和组织的国际项目。PISA是对十五岁的高中生的阅读能力,数学能力和科学能力一个综合评估考试。
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在经济合作与发展组织国家中,约20%的医生来自国外。
In countries of the Organisation for Economic Co-operation and Development (OECD), around 20% of doctors come from abroad.
尽管这是很多经济合作与发展组织国家的共同问题,但在美国,现金支付比例在过去几十年间显著下降。
Though this is a problem in many OECD countries, in America the proportion of out-of-pocket spending has declined sharply in the past few decades.
在美国,出血性中风后的死亡率为25.5%,而在全体经济合作与发展组织国家中,该比率仅为19.8%。
The death rate after haemorrhagic strokes was 25.5% in American hospitals but only 19.8% in OECD countries as a group.
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