【单选题】下列属于人类免疫缺陷病毒(HIV)的确证试验的是:
【简答题】已知一次函数的图象经过点(﹣2,1)和(4,4). (1)求一次函数的解析式,并画出图象; (2)P为该一次函数图象上一点,A为该函数图象与x轴的交点,若S △PAO =6,求点P的坐标.
【简答题】Those who could not get into the university of their first choice may e___ u__ going to the university of their second or third choice.
【判断题】在配置任何防火墙功能之前,都必须配置安全*区域,才能针对安全*区域或者安全域间配置防火墙功能