What can consumers do if 3D printing becomes as common as photocopying?
AThey can alter the program that controls the print heads.
BThey can develop stronger plastic blends and turn them into ink.
CThey can buy a customized digital file of a 3D object and print it.正確答案
DThey can improve the accuracy and efficiency of a 3D printer and print it.
答案與詳解
