单项选择题 Alex is a first-line supervisor with an employee who has a performance problem. After much coaching of the employee with little apparent improvement, Alex decides to terminate the employment relationship. This type of separation is called: A. a layoff. B. a voluntary separation. C. a discharge. D. rightsizing.

未知题型 intadd(intm,intn){if(m>100||m<0||n>100||n<0)return-1;returnm+n;}该程序期望输出两个100以内的正整数之和，和可以超过100。返回-1则表示输入参数不符合要求用边界值分析的方法测试该程序，如果要测试期望的结果，要选择哪些测试数据（）。

判断题 Du Fu was a great realist poet in the Tang Dynasty.