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。

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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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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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