在换热器中应走壳程的是()流体。
A、粘度小的
B、压力高的
C、腐蚀性强的
D、有泄漏危险的
参考答案:A
用燃灯法测定硫含量,试样的硫含量X按下式()计算.已知:V为滴定空白试液所消耗盐酸溶液体积,mL;V1为滴定吸收试样燃烧生成物的溶液所消耗盐酸溶液体积,mL;K为换算为0.005mol/L盐酸溶液的修正系数;G为试样燃烧量,g.
A.X=[(VV1)K/G]×100
B.X=[(V1V)K/G]×0.0008×100
C.X=[(VV1)K/G]×0.0008×100
D.X=[(V1V)K/G]×100
A 23-month-old child is brought to the emergency department with suspected croup. Which assessment finding reflects increasing respiratory distress()
A. Intercostal retractions.
B. Bradycardia.
C. Decreased level of consciousness.
D. Flushed skin.