哪些情况立即启动电泵停止汽泵运行?
腹膜后良性肿瘤中不包括() ["脂肪瘤","平滑肌瘤","脂肪肉瘤","异位嗜铬细胞瘤","淋巴管瘤"]
男性,78岁,视力0.5,诉读报困难,即往体健,对其眼底检查如图,该患者可能患有() ["年龄相关性黄斑变性","糖尿病视网膜病变","中心性浆液性脉络膜视网膜病变","脉络膜黑色素瘤","以上都不是"]
切削力可分解为主切削力Fc、背向力Fp和进给力Ff,其中消耗功率最大的力() ["A、进给力Ff","B、背向力Fp","C、主切削力Fc","D、不确定"]
蹲走试验主要是用于检查() ["半月板前角损伤","半月板后角损伤","前交叉韧带损伤","后交叉韧带损伤","前、后交叉韧带同时损伤"]
汽动给水泵发生汽化如何处理?