不挂科搜题免费

问题:

手工喷漆室工艺参数风速、温度及湿度最佳是;()

选项

  • 0.5m/s,20~25℃,70%

  • 0.3m/s,20~25℃,70%

  • 0.5m/s,18~25℃,20%

  • 0.5m/s,18~25℃,50%

  • 答案:

    A.0.5m/s,20~25℃,70%