安全状况等级定为4级的压力容器,其累积监控时间() ["一般不超过3年","不得超过2年","不得超过3年"]
Which of the following is NOT a characteristic of British government?() ["It offers the Queen high political status and supreme power.","It is both a parliamentary democracy and a constitutional monarchy.","It is the oldest representative democracy in the world.","It has no written form of Constitution."]
20世纪五十年代,喷气技术在民航中的应用标志着()的产生。 ["古代旅行","近代旅游和旅行","现代旅游","国际旅游"]
下列不属于家庭成长期满巢期的是()。 ["A.家庭支出固定 ","B.教育负担增加 ","C.保险需求高峰 ","D.追求收入成长"]
简述当代中国画创新的几种类型。