— 3D printing is one of the latest technological innovations.
— ____ Maybe its functions are questionable.
() is one of the quality planning outputs.
3D printing is just at the beginning stage. It is not ____.
— 3D printing is one of the latest technological innovations.
— ____ Maybe its functions are questionable.
She's not very optimistic ____ the development of 3D printing.
() is one of the quality planning outputs.
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