A. standards are higher at foreign universities B. their governments encourage them to travel C. salaries and conditions are better abroad D. they are eager for new knowledge 参考答案:D 答案解析:事实细节题。根据原文第一段的第二句,Serious students were always ready to go abroad in search of the most stimulating
第12题: [单项选择]以下关于宏的叙述中正确的是 A. 宏名必须用大写字母表示 B. 宏定义必须位于源程序中所有语句之前 C. 宏替换没有数据类型限制 D. 宏调用比函数调用耗费时间 参考答案:C 答案解析:[解析] 宏名可以大写,也可以小写;其有效范围为定义命令之后到本源文件结束;宏的展开是字符的替换过程,没有数据类型限制。