【判断题】人际交往能力是指妥善处理组织内部关系的能力,包括与周围环境建立广泛联系和对外界信息的吸收转化能力,以及正确处理上下左右关系的能力。
【简答题】如图所示为一离心泵的工作叶轮,已知:进口半径r 1 =100mm,出口半径r 2 =200mm,进口宽度b 1 =100mm,出口宽度b 2 =50mm,叶片出口安装角β 2 =20°,流量Q=0.24m 3 /s,转数n=1450rad/min,试求: (1)作用在叶轮上的力矩M p ; (2)水泵的水头H p ; (3)水泵的功率N p 。
【多选题】人际交往能力是指妥善处理组织内部关系的能力,包括( )。
【单选题】Steven thirds that his computer system
A.
is just as fast as the latest systems.
B.
is much faster than Elizabeth's present system.
C.
is completely different to the newest systems.
【单选题】( )是指妥善处理组织内外关系的能力,包括与周围环境建立广泛联系和对外界信息的吸收、转换能力,以及正确处理上下左右关系的能力。
【单选题】The sentence “It is difficult to answer that question” (in para. 2) means ____.
A.
that question is not difficult to answer
B.
that question is difficult to answer
C.
it is different to answer that question
D.
it is important to answer that question
【简答题】阅读理解 Every one has his own way of saying things and his own special expressions. Many American everyday expressions are from colors. Red is a hot color. Americans often use it to express 'heat'. They ...
【简答题】2-4 、离心式风机叶轮外径 D 2 =600mm ,叶轮出口宽度 b 2 =150mm ,叶片出口几何角 β 2g =30° ,转速 n=1450 r/ min 。设叶轮进口无气旋,空气密度 ρ=1.2kg/m 3 。 试 求: ( 1 )当流量为 10×10 3 m 3 /h 时,叶轮的相对速度 ω 2 和绝对速度 v 2 ; ( 2 )叶片无限多时的理论全压 p T ∞ ; ( 3 )叶片无...
【判断题】人际交往能力是指妥善处理组织内外关系的能力,包括与周围环境建立广泛联系和对外界信息的吸收、转化能力,以及正确处理上下左右关系的能力。