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【单选题】
圆管紊流过渡区的沿系数λ:A.
与雷诺数Re有关；
B.
与管壁相对粗糙 k s / d 有关；
C.
与Re及 k s / d 有关；
D.
与Re和L有关 。
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【单选题】We were stuck by the extent ______ which teachers' decisions served the interests of the school rather than those of the students.
A.
to
B.
for
C.
in
D.
with
【简答题】We were deeply by the efficiency of the employees in the company.
【简答题】介电晶体在某个温度范围内可以发生自发极化,而且自发极化方向能随外电场的反向而反向,这类介电材料称为 。
【单选题】We were shocked by the extent to ______ teachers' decisions served the interests of the school rather than those of the students.
A.
which
B.
that
C.
why
D.
what
【单选题】申请人体器官移植手术患者的排序,应当遵循的原则是
A.
应当符合医疗需要,统一领导、集中管理的原则
B.
应当符合医疗需要,遵循公平、公正和公开原则
C.
应当符合伦理、人体器官管理技术规范原则
D.
应当符合医疗需要,就近原则
E.
应当符合自愿、无偿原则
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