The disappearance of old-style. hotel porters can be attributed to the fact that ________.
A. self-service provides a cheaper alternative
B. the personal touch is less appreciated nowadays
C. machines are more reliable than human beings
D. few people are willing to do this type of work
某建筑公司首次进入某省施工,为创造良好的社会效益,项目经理决定暗自修改水泥混凝土的配合比,使得修改以后的混凝土强度远远高于原配合比的混凝土强度,项目经理部也愿意承担所增加的费用.这个决定的实施()。
“设计单位在设计文件中选用的建筑材料、建筑构配件和设备,应当注明规格、型号、性能等技术指标”,这体现了设计单位()的责任。
建设工程设计合同区别于建设工程勘察合同的主要权利义务,更加强调的当事人权利调括()。