【单选题】Which of the following methodology centers on the analysis of the interlanguage?
【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做出反应而不理会椭圆形光圈。该过程称为( )
【判断题】孔子曾说过“未知生 焉知死”,表达了他看重活着时候努力的态度。
【单选题】What function does the third paragraph serve?
A.
It continues the analysis of the problem.
B.
It confirms the seriousness of the problem.
C.
It further explains the soaring cost.
D.
It offers a cause for the rising cost.
【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做出反应而不理会椭圆形光圈。该过程称为( )。
【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.
【简答题】某汽车的传动轴是由无缝钢管制成。已知轴的外径D=90mm,壁厚δ=2.5mm,传递的最大外力偶矩M=1.5kN·m,轴的材料为45钢,许用切应力[τ]=60MPa。①试校核轴的强度;②若改用相同材料的实心轴,并要求它与原轴强度相同,试确定其直径;③比较实心轴和空心轴的重量。
【单选题】干烤法达到灭菌法条件是 ( )
B.
120 ~ 140℃,100 ~ 20min
【单选题】Which of the following steps of the market screening process involves the analysis of the quality of workforce, materials, and infrastructure?
A.
identification of basic appeal of a market
B.
assessment of the national business environment
C.
measurement of market or site potential
D.
selection of the market or site