手工绘制夹具总图时,通常首先绘制出()。 ["夹具体","辅助元件","工件","夹紧机构"]
色彩中,冷暖印象并不是颜色所代表的()。 ["情感","温度","湿度","热度"]
装置闪蒸岗位黄色管线内走的介质是()。 ["丙烯","水","氮气","空气"]
患者,女,63岁。缺失,间隙4mm,近中面龋,根充完善,下颌牙为局部义齿,修复最好的设计是() ["活动义齿","单端固定桥","双端固定桥","种植义齿","半固定桥"]
下列哪项属于行政处分() ["赔礼道歉","罚款","返还财产","记过","赔偿损失"]
道岔表示器标志灯夜间显示紫色灯光有何意义?