光盘存储器是计算机外存储器之一。以下有关光盘存储器的叙述中，_爱下问搜题

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问题单项选择题

光盘存储器是计算机外存储器之一。以下有关光盘存储器的叙述中，错误的是（）。

A．光盘表面有许多凹坑，凹坑的边缘表示信息“1”，凹坑内外的平坦部分表示“0”

B．光驱的寻道时间通常比硬盘驱动器慢得多

C．DVD盘片与CD盘片尺寸相同，因此，它们的扇区总数也相同

D．蓝光盘BD是日前存储容量最大的光盘片，单层盘片容量可达25GB

答案

参考答案：C

完形填空

Are supermarkets designed to persuade us to buy more? When you enter a supermarket, the manager knows         than you do how you will behave — which        you will walk, where you will        , what will make you      one product rather than another. When customers go into a shop, they      look to their left       move  towards the right. So supermarket entrances are usually on the left of the building, and the arrangement is to take shoppers       the store ,aisle after aisle, from left to right. Then shoppers will pay attention to all the      .
Fresh fruit and        are displayed near supermarket entrances. This gives the        that only healthy food is sold in the shop.       foods that everyone buys, like sugar and tea are put near each other. They are kept in different aisles so customers are taken past other attractive foods        they find what they want. In this way, shoppers are      to buy products that they do not really       .
People walk quickly through      aisles, but they move more slowly in wide aisles and give more attention to the products. One best-selling       for products is at the end of aisles, because shoppers        to turn into the next aisles.
Sweets are often placed at children’s        level at the checkout. While parents are waiting to pay, children        the sweets and put them in the trolley.
Customers buy more when shelves are      than when they are half empty because they feel there is something wrong with those products that are there.

单项选择题

我国上市银行的经营目标普遍为( )。

A．公司价值最大化
B．利润最大化
C．股东价值最大化
D．资产最大化