Abstract: "the Standard Understanding Book of the mathematics curriculum," particularly pointed out: mathematics teaching, the teaching of mathematics activities, is activities to enable students to experience the process of mathematic.
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'the G-20 Pittsburgh summit also particularly pointed out the need to avoid the premature withdrawal of stimulus policies.'
匹兹堡召开的G20峰会也特别指出有必要避免过早退出刺激政策。
The G-20 Pittsburgh summit also particularly pointed out the need to avoid the premature withdrawal of stimulus policies.
匹兹堡召开的G20峰会也特别指出有必要避免过早退出刺激政策。
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