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【单选题】
对流传热的热阻主要集中在滞流内层, 强化传热 的有效途径是 ( )。A.
减小滞流内层厚度，增加流体湍动程度
B.
减小湍流层厚度，增加流体滞流层厚度
C.
增加 滞流内层厚度， 降低 流体湍动程度
D.
减小滞流内层厚度，降低流体湍动程度
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【单选题】I should like to use the same TV set ___ is used in your classroom. A. which B. who C. as D. whose
A.
which
B.
who
C.
as
D.
whose
【单选题】I should like to use the same TV set ___ is used in your classroom.
A.
which
B.
who
C.
as
D.
whose
【单选题】有人认为离心泵的扬程就是泵的升扬高度,有人认为泵的轴功率也就是原动机的功率。这两个说法( )
A.
都不对
B.
都对
C.
前一个对，后一个不对
D.
前一个不对，后一个对
【单选题】I should like to use the same TV ______ is used in your classroom.
A.
which
B.
who
C.
as
D.
whose
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【简答题】绩效考核中常见的问题和对策 Page 407-408
【单选题】有人认为离心泵的扬程就是泵的升扬高度，有人认为泵的轴功率就是原动机的功率。这两个说法（ ）。
A.
都对
B.
前一个对，后一个不对
C.
都不对
D.
前一个不对，后一个对
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