下列哪项不支持脑瘫诊断()。 ["运动发育落后","肌张力异常","姿势异常","反射异常","病变呈进行性加重"]
如果某原油相对密度为O.891,则其属于()。 ["轻质原油","中质原油","重质原油","超重质原油"]
六电机组RB动作的对象有()。 ["A、引风机;","B、送风机;","C、汽动给水泵;","D、真空泵。"]
下列可作为确诊支原体肺炎的依据的是() ["特征性X线表现","临床表现","血或痰细菌培养阴性","冷凝集试验阳性,且滴度逐渐升高","红霉素试验治疗有效"]
六电机组危急疏水扩容器收集的疏水有()。 ["A、所有髙加危急疏水;","B、除氧器溢放水;","C、所有低加危急疏水;","D、主蒸汽及再热器系统疏水。"]
先天性髋脱位的类型及需鉴别的疾病?