Lower secondary education and upper secondary education lasts for three years each.
在挪威，初级教育为期7年，初中和高中教育各有三年。
Cloud based academic writing system, mainly for upper secondary and post secondary education.
用于为高中和高中后阶段的基于云的学术写作系统。
There was no significant difference of secondary substance between upper and lower leaves.
美洲斑潜蝇对矮生菜豆上、下部叶片的次生物质的趋性没有显著差异。
There was no significant difference of secondary substance between upper and lower leaves.
美洲斑潜蝇对矮生菜豆上、下部叶片的次生物质的趋性没有显著差异。
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