自焙电极在20~400℃之间其机械性能随温度升高变是() ["降低","不变","升高","都不对"]
患者,女性,50岁。对称性多关节肿痛伴晨僵1年余,血RF1:40(+),ESR100mm/h。本患者目前不考虑的治疗措施是() ["A.非留体抗炎药","B.强的松","C.环磷酰胺","D.甲氨蝶呤","E.关节手术"]
SY/T0240―1997《埋地钢制管道石油沥青防腐层技术标准》规定普通级石油沥青防腐层的检漏电压为()KV。 ["10","15","16","20"]
大脑皮层可以大致分为以下机能区() ["感觉皮层区","运动皮层区","精细皮层区","联合皮层区"]
中国煤炭分类标准把()作为划分无烟煤小类的指标之一。 ["Har","Had","Hd","H"]
穆什根努