【单选题】一个 Java源 文件中可以有 ( )公共类,
【判断题】设计构件时,须在满足安全工作的前提下尽量节省材料的要求。 ( )
【多选题】一个 Java 源文件中可以有( )个公共类?
【单选题】( )的适用情况和总体发展水平正是衡量一个国家社会信用水平的尺度
【单选题】贵溪堂建盏作为2017年厦门金砖国家会议赠送给各国元首的纪念品,这属于( )。
【单选题】In order to avoid certain charge, the analysis involves
【多选题】A quantitative research:
A.
Uses the analysis of numerical data
B.
Involves large number of participants representative of the population of interest
C.
Aims at using statistics to explain the observations
D.
Uses various instruments to collect data (questionnaires, monitors, other tools)
【单选题】一个Java源文件中可以有( )公共类。
【单选题】The integration of different data layers involves a process called _______, which can be a visual operation, but analytical operations require one or more data layers to be joined physically.