最常用的塑料成型方法是() ["A.注塑成型","B.气压成型","C.水浴成型","D.光固化成型","E.以上都是"]
中骨盆前后径() ["9cm","10cm","11cm","11.5cm","12.75cm"]
下列不含有羰基的官能团是() ["A、羧基","B、羰基","C、酰胺基","D、醚基"]
卡环连接体的作用是() ["卡抱作用","固位作用","稳定作用","连接作用","支持作用"]
男性,54岁,因咯血、气急伴尿少入院。检查:血压150/90mmHg,心率89次/分,呼吸22次/分。全身轻度水肿。血清钠为115mmol/L,尿钠为30mmol/L,血清清蛋白为32g/L。X线胸片提示右下肺癌首先考虑。该患者诊断之一是() ["A.低清蛋白血症","急性左心衰","血液低渗状态","低血容量性休克","急性呼吸衰竭"]
KZW-4GAB型空重车自动调整装置如何进行空车位试验?