题型：填空题 — Where is your mother? — She ______ to Beijing on business, she will be back in a week.A. goes B. went C. has gone D. has been 查看答案
题型：填空题 各级公安机关和民警要善于从政治上考虑问题，判断形势，增强( )，在事关全局、事关政治方向、事关根本原则等重大问题上始终保持清醒和坚定。A．政治敏锐性 B．政治鉴别力C．政治敏锐性和政治鉴别力 D．政治警惕性 查看答案