下列关于基础地理信息数据更新的说法中，错误的是（）。更新 A._爱下问搜题

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问题单项选择题

下列关于基础地理信息数据更新的说法中，错误的是（）。更新

A.可以定期进行全面更新，也可以进行动态局部更新

B.可以全要素更新，也可以一种或几种要素更新

C.更新后成果整体精度高于原数据精度

D.可以按图幅进行更新，也可以按区域进行

答案

参考答案：C

填空题

根据对话内容,用方框中所给词的适当形式填空.(其中有一词多余)

teach, student, invent, himself, at, job, importance, know

    School education is very important and useful. Yet no one can learn everything at school and a teacher
cannot teach his 1 everything they want to know.
    His 2 is to show his students how to learn. He teaches them how to read and how to think. So much
more is to be learned outside school by the students 3 .
    It is always more 4 to know how to study by oneself. It is quite easy to learn something, but it is difficult to use it to solve problems. Great inventors do not get everything 5 school, but they still can 6 many things and change the world a lot.
    How can the inventors do all of this? One of the answers is: they 7 how to study. A lot of things are not
taught in the classroom. They get a lot of knowledge by reading outside school. They work hard and never give up all their lives.

解答题

一种商品打“八五折”出售，也就是把这种商品优惠了85%．______．（判断对错）