On Sunday, Lucy and I go to a bookshop, then we want to go to the supermarket. But we don't know the way how to get to the bookshop. We ask the policeman in the street for help. He tells us to walk along Renmin Road, and turn right at the second crossing（十字路）. Then we walk and walk but we don't see the bookshop. We are too tired so we take a taxi. “Please take us to the bookshop.” We tell the taxi driver. The taxi driver laughs and says, “ The bookshop is over there, you may get off now.”

It's black and white.

下列选项中，属于我国国有经济的是(　 )

阅读下面的文字，完成下列各题。

    宋人不知诗而强作诗。其为诗也，言理而不言情，故终宋之世无诗焉。然宋人亦不可免于有情也故凡其欢愉愁怨之致动于中而不能抑者类发于诗余故其所造独工非后世可及。盖以沈至之思而出之必浅近，使读之者骤遇如在耳目之表，久诵而得沈永之趣，则用意难也。惟宋人专力事之，篇什既多，触景皆会。天机所启，若出自然。禾中王子介人，示予所著词，不下千余首，自前世李、晏、周、秦之徒，未有多于兹者也。

（选自陈子龙《王介人诗余序》）