5[单选题] 在对某个数据库进行分类汇总之前，必须 A.不应对数据库排序 B.使用数据记录单 C.应对数据库的分类字段进行排序 D.设 - 查题网

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河南成教 / 计算机应用基础

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5[单选题]
在对某个数据库进行分类汇总之前，必须

A.不应对数据库排序

B.使用数据记录单

C.应对数据库的分类字段进行排序

D.设置筛选条件

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计算机应用基础

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4[填空题] 在个体发展的过程中，（）对儿童的心理发展提供了可能性；（）为儿童的心理发展提供了现实性。河南理工大学

7[翻译题] 日落时景色非常绚丽。太阳挂在大海上面，阳光映红了海水。大学英语2

For many people today, reading is no longer relaxation. To keep up their work they must read letters, reports, trade publications, interoffice communications, not to mention newspapers and magazines: a never-ending flood of words. In getting a job or advancing in one, the ability to read and comprehend quickly can mean the difference between success and failure. Yet the unfortunate fact is that most of us are poor readers. Most of us develop poor reading habits at an early age, and never get over them. The main problem lies in language itself—words. Single words have little meaning until they are combined into phrases, sentences and paragraphs. Unfortunately, however, the untrained reader does not read groups of words. He reads one word at a time, often regressing to reread words or passages. Regression, or looking back over what you have just read, is a common bad habit in reading. Another habit which slows down the speed of reading is vocalization—sounding each word either orally or mentally as one reads. To overcome these bad habits, some reading clinics use a device called accelerator (加速器), which moves a bar down the page at a predetermined speed. The bar is set at a slightly faster rate than the reader finds comfortable, in order to “stretch” him. The accelerator forces the reader to read fast, making word-by-word reading, regression and vocalization virtually impossible. At first, comprehension is sacrificed for speed. But when you learn to read ideas, you will not only read faster, but your comprehension will improve. Many people have found their reading skills improved a lot after some training. What does “At first, comprehension is sacrificed for speed” (Para. 2) mean? 大学英语（三）

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