问答题 The human resources department is using online advertisements to recruit new employees because applicants can respond to this more quickly than to print ones.
【正确答案】正确答案：this—these
【答案解析】解析：这里的代词指代的是前面的“online advertisements”，故应用复数形式的these，且可以和后面比较的“print ones”相对应。