铁路行车事故分为哪几种?
配制浓度为0.3%,配好的溶液只能使用一天,对金属器皿有褪色和腐蚀作用的是() ["漂白粉","氯亚明","高锰酸钾","TC-101"]
肱骨髁上骨折易出现何种并发症() ["易损伤正中神经","可能导致前臂骨筋膜室综合征","易损伤腋神经","不易损伤尺神经","可导致肱动静脉损伤"]
()是将压缩机与电机共同组装在一个封闭的机壳内,机壳的接缝用焊接的方式焊死。 ["开放式压缩机","开启式压缩机","半封闭式压缩机","全封闭式压缩机"]
在下列试验操作中,哪个不需加入Ca2+() ["RVVT","APTT","PT","STGT","TT"]
N1002型起重机、主副钩,起重机回转和自力运行速度各是多少?