【单选题】Which of the following methodology centers on the analysis of the interlanguage?
【判断题】肾间质主要由大量弯曲行走的单层上皮性管道所构成,这些管道因与尿液的形成有关,故所谓泌尿小管。( )
【单选题】The aggregation process and the analysis of the data are the primary weaknesses of:
B.
logical application groups.
D.
process/data class matrices.
【单选题】The branch of economics that deals with the analysis of the whole economy is called
【单选题】The analysis of the first shipment is not _____certified by China Commodity Inspection Bureau.
【简答题】如图5.2所示,一汽车传动轴由无缝钢管制成,外径D=90mm,内径d=85mm,许用切应力[τ]=60MPa,传递的最大力偶矩M=1.5kN.m,[θ]=2°/m,G=80GPa。试校核其强度和刚度;若保持轴的长度、重量不变,将传动轴改为同材料的实心轴,试校核其强度和刚度。
【单选题】在心理学实验中,为了使小狗能够区分开圆形光圈和椭圆形光圈,研究者只在圆形光圈出现时才给予食物强化,而在呈现椭圆形光圈时不给予强化,那么小狗便可以学会只对圆形光圈作出反应而不理会椭圆形光圈。该过程称为( )。
【单选题】干烤法达到灭菌法条件是 ( )
B.
120 ~ 140℃,100 ~ 20min