When a machine is ______, suitable material must be chosen for its parts.A、build

游客2023-09-28 74

问题 When a machine is ______, suitable material must be chosen for its parts.

选项 A、building
B、build
C、to build
D、to be built

答案 D

解析

转载请注明原文地址:http://tihaiku.com/zcyy/3053506.html

相关试题推荐

随机试题

最新回复(0)

Shortsightcanbe________bytheuseofsuitableglasses.A、fixedB、improvedC、r