[单选]
Today there are （）computers in our homes and offices than there are people who live and work in them.

A . less
B . more
C . little
D . lotsof

关系中不允许有重复元组的原因是（）关系中没有行序的原因是（） 00P was invented because procedural languages, such as（）,Pascal, and BASIC. 对我国计算机软件著作权的保护范围，下列（）不属于保护范围。计算机程序及其有关文档。计算机软件开发所用的思想。计算机软件开发所用的处理过程、操作方法。计算机软件开发所用的数学概念。申请软件著作权登记的，应当向（）机构提交申请表、软件的鉴别材料和相关的证明文件。国家知识产权局。国家版权局。信息产业部。国家工商总局。

Today there are （）computers in our homes and offices than there are people who live and work in them.

参考答案：

● 参考解析

more…than…的含义是“比…更”。今天在我们的家里和办公室里，计算机的数量要比使用它们来生活和工作的人还要多。

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[单选] Today there are （）computers in our homes and offices than there are people who live and work in them.

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[单选]
Today there are （）computers in our homes and offices than there are people who live and work in them.