D201、D202含硫水应去() ["A、D301","B、D302","C、D303","D、D304"]
巡回检查,屏蔽泵距1米处测得的噪音应不超过() ["A.80dB","B.85dB","C.75dB"]
反应向分馏进料前,减压塔底重沸炉出口度控制在()℃ ["A.150~200","B.200~250","C.250~300"]
下列哪项有助于Crohn病的诊断() ["环形溃疡","连续型病变","全层性炎症,瘘管形成","病理发现隐窝脓肿","病理发现干酪性肉芽肿"]
随着压缩比的提高,压缩终点的压力与温度(),指示热效率(),指示热效率的提高率(). ["升高/提高/降低","升高/降低/增大","降低/提高/降低","升高/提高/增大"]
真核生物