[单项选择]下列哪个选项是Java调试器,如果编译器返回程序代码的错误,可以用它对程序进行调试 A. 对于“标题”带区,系统只在报表开始时打印一次该带区所包含的内容 B. 对于“页标头”带区,系统只打印一次该带区所包含的内容 C. 对于“细节”带区,每条记录的内容只打印一次 D. 对于“组标头”带区,系统将在数据分组时每组打印一次该内容
A. he had no time to read books B. he did not learn how to work very quickly C. he could earn money after he signed the indenture D. he could help his brother a lot 参考答案:D