单项选择题
Which of the following factors will affect the selectio...
单项选择题Which of the following factors will affect the selection of a MPU? ①the pole piece length ②the availability of pre-drilled holes ③the space available for installation.A.①②B.②③C.①③D.①②③
A.福建、广西、辽宁B.福建、广西、山西C.广东、贵州、山西D.福建、贵州、辽宁
梁思成提出文物建筑维修的原则是:( )A.古为今用B.整旧如新C.修旧如旧D.复原重建
单项选择题梁思成提出文物建筑维修的原则是:( )