In their views, unit attestation belongs to documentary evidence instead of testimony of witness.
他们认为单位证明属于书证，不属于证人证言。
The first unit asks students to compare a traditional documentary photograph to a digitally-manipulated image.
第一单元，要求学生比较一幅传统的记录图片和一个数位合成的图像。
The first unit asks students to compare a traditional documentary photograph to a digitally-manipulated image.
第一单元，要求学生比较一幅传统的记录图片和一个数位合成的图像。
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