Is there anything I can bring? _________
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You’re welcome to bring a date.
A. Host
B. Guest
Can I bring the kids, or is it adults only?
A. Host
B. Guest
一台搅拌楼的每盘之间,各搅拌楼之间,拌和物的坍落度最大允许偏差为( )。
A. ±2mm
B. ±5mm
C. ±8mm
D. ±10mm
水泥混凝土路面施工应根据( )选配车型和车辆总数。
A. 施工进度
B. 运量
C. 运距
D. 路况
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