装煤时间
public class Foo implements Runnable （ public void run （Thread t） { system.out.printIn（“Running.”）； } public static void main （String args） { new thread （new Foo（））.start（）； } ） What is the result？（） [" An exception is thrown."," The program exists without printing anything."," An error at line 1 causes compilation to fail."," An error at line 2 causes the compilation to fail."," “Running” is printed and the program exits."]
通常，在Excel环境中用来存储和处理工作数据的文件称为（）。 ["工作薄","工作表","图表","数据库"]
施工企业的质量方针是“质量第一，（）至上。” ["工程","用户","安全","住户"]
吴军博士认为大数据有一个特点是，可以非常精密地定位和确定世界发生的每一件小事。
多态模型
