A. 预制楼梯平台 B. 预制柱 C. 预制叠合楼板 D. 整体卫浴间
A. 车容不整洁 B. 手、脚制动及转向系统灵活可靠 C. 螺钉螺母缺但不松 D. 油、气、电、水渗漏不严重
A. 正确 B. 错误
A. more than the working temperature B. less than the working temperature C. the working temperature D. the same as the surrounding temperature