# Aiping Xu

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## Aiping's activity

#### Aiping Xu copied Geometry. Right-angled triangle II. Version 6 to Aiping's copy of Geometry. Right-angled triangle II. Version 6 4 years, 10 months ago

#### Aiping Xu copied 00a - Engineering Arithmetic: 005 to Aiping's copy of 00a - Engineering Arithmetic: 005 4 years, 10 months ago

#### Aiping Xu on 00a - Engineering Arithmetic: 005 4 years, 10 months ago

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