【单选题】According to the author, the department stores of the 19th century ______.
A.
played a role in the spread of popular culture
B.
became intimate shops for common consumers
C.
satisfied the needs of a knowledgeable elite
D.
owed its emergence to the culture of consumption
【简答题】$a=92 echo $a>90?"成绩为优秀":“成绩为合格”
【单选题】当血浆蛋白显著减少时,引起水肿的主要原因
【简答题】王老师发现班上有些幼儿每次吃饭的时候都把一些蔬菜剩下.挑食现象非常普遍,王老师担心这样下去幼儿会营养不均衡,影响幼儿的身体健康。 请设计一个活动.帮助幼儿认识到蔬菜的重要性。
【简答题】According to the author, who played the most important role in him walk back to school again?
【多选题】为使台阶能满足交通与疏散的需要,我国对台阶的设置作出了以下规定()
C.
人流密集场所台阶的高度超过1米时宜有护栏设施
D.
人流密集场所台阶的高度超过1.2米时宜有护栏设施