本期内容：
In the most recent round of international Pisa tests, Canada was one of a handful of countries to appear in the top 10 for maths, science and reading. The tests, run by the Organisation for Economic Co-operation and Development (OECD), are a major study of educational performance and show Canada's teenagers as among the best educated in the world.

PISA：Program for International Student Assessment
Handful：少数几个



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