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【单选题】
下列关于工程项目目标之间关系的表述中，反映对立统一关系的是（ ）。A.
建设工程的功能和质量要求提高，需要投入较多资金，也会需要较长的建设时间
B.
加快进度以缩短工期，会使工程投资增加且会对工程质量产生不利影响
C.
降低投资，会迫使工程功能和使用要求降低，影响工程进度的加快
D.
缩短工期虽会增加一定的投资，但可以使工程提前投入使用，从而提早发挥投资效益
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