Jan：I have new photos of my family, but they're not very good. This is my sister…
Mark：Where is she?  Is she at the library?
Jan：No, she's in the living room. She s doing her homework. And that s my brother.
Mark：Is he doing his homework, too? What's he eating?
Jan：He's watching a scary movie on TV and eating french fries.
This is a picture of my aunt and my mother.
Mark：Is that -your mother in the pool?
Jan：No, that's my aunt. My mother can't swim. And this is my mother and my aunt at the shop. They really like shopping and eating at the shop. Mark: Interesting photos.

把二次函数$y=-3x^2$的图象向左平移2个单位，再向上平移1个单位，所得到的图象对应的二次函数关系式是（    ）

1912年8月9日《晨报副刊》报道，在北京一次有关中西餐的民意测验显示，爱吃西餐和兼食中西餐的人数占调查总数的23%，被调查对象包括普通市民、知识分子等。由此可知当时（    ）

我国最大的综合性工业基地