試題詳解

46 What can consumers do if 3D printing becomes as common as photocopying?
(A) They can alter the program that controls the print heads.
(B) They can develop stronger plastic blends and turn them into ink.
(C) They can buy a customized digital file of a 3D object and print it.
(D) They can improve the accuracy and efficiency of a 3D printer and print it.