【判断题】中国古代建筑的庭院与组群布局,一般采用对称式的方式,沿着纵轴线与横轴线设计。()
【简答题】当板件厚度或宽度在一侧相差大于4mm时,应做坡度不大于( )(静载)或1:4(动载)的斜角,以平缓过度,减小应力集中。
【简答题】一平板电容器的电极面积A=0.05m 2 ,电极间的距离d=5mm,两极电压为U=200V,计算电极上的电荷、电容器的储能以及电极之间的作用力。
【单选题】当板件厚度或宽度在一侧相差大于4mm时,应做坡度不大于1:2.5(静载)或1:4(动载)的斜角,以平缓过度,减小( )。
【单选题】以下不属于数据库系统( DBS )的组成的是
【单选题】对《灯下漫笔》理解有误的一项是( )
C.
中国人向来就没有争到过“人”的价值是作者的主要观点;
D.
作者极力描述了自己终于有一条退而求其次的路可走时的欣慰;
【多选题】Which of the following statement about concepts concerning sampling is/are true?
A.
Sample refers to a number of people taken from a larger group (i.e., population) and used to provide the information about the entire group.
B.
Sampling refers to the process of drawing a sample from a large research population.
C.
Census refers to procedure of systematically collecting information from every member of a given population.
D.
Sampling is the method used when the size of the population would render a census unfeasible and/or unnecessary.
E.
Representativeness means the extent to which the data obtained from the sample are true with the target population.