【单选题】The Intrinsic distinction between the laminar flow and the turbulent flow is ( ) .
A.
velocity of turbulent flow is greater than that of laminar flow
B.
Re of laminar flow is less than that of turbulent
C.
larger cross-sectional area is turbulen t , while samller cross-sectional area is laminar.
D.
laminar flow without lateral mixing, while turbulent has lateral mixing.
【简答题】感染科护士小卿要为一乙型肝炎病人进行静脉输液。操作前,小卿在治疗室内用浸有有效氯的抹布擦拭了治疗盘、治疗车和操作台,洗手、戴好口罩后开始准备静脉输液所需的用物,特别注意检查,核对各类无菌物品的名称、有效期、包装是否完整等 ...... 请问 : 1. 小卿在为病人进行静脉输液前为什么要按这样的流程准备用物 ? 2. 根据你对静脉输液全过程的观察 , 请列举可能涉及哪些清洁、消毒、灭菌的方法 ?
【单选题】— Peter, come on. I need your hand! — _____ [ ]
D.
What do you mean by saying this?
【简答题】Peter (hand) a little box of chocolate to me.
【单选题】已知某条支路阻抗为 Z=5-j8 ( Ω ) ,则该支路电流在相位上 ( ) 于该支路两端的电压。
【多选题】销售顾问在交车当天所需要做的准备工作包括哪些内容?
D.
知销售经理、服务人员以及相关人员,告知参加交车仪式的时间,以及客户的信息