问题 单项选择题

机电产品国际招标的专家组成有特殊要求,如( )万美元及以上国际招标项目,所需专家的1/2以上应从国家级专家库中抽取。

A.300

B.400

C.500

D.600

答案

参考答案:C

解析: 对评标委员会构成的规定有: (1)评标委员会由招标人代表及技术、经济专家组成,成员人数为5人以上且为单数,其中招标人代表不得超过1/3,技术和经济方面的专家不得少于2/3; (2)政府采购货物和服务招标金额在300万元以上、技术复杂的项目特别规定:评标委员会中的技术、经济方面的专家人数应当为5人以上且为单数; (3)机电产品国际招标的专家有特殊要求,如500万美元及以上国际招标项目,所需专家的1/2以上应从国家级专家库中抽取。

选择题
单项选择题

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 (1) a job or advancing in one, the ability to read and comprehend (2) can mean the difference between success and failure. Yet the unfortunate fact is that most of us are (3) readers. Most of us develop poor reading (4) at an early age, and never get over them. The main deficiency (5) in the actual stuff of language itself—words. Taken individually, words have (6) meaning until they are strung together into phrases, sentences and paragraphs. (7) , however, the untrained reader does not read groups of words. He laboriously reads one word at a time, often regressing to (8) words or passages. Regression, the tendency to look back over (9) you have just read, is a common bad habit in reading. Another habit which (10) down the speed of reading is vocalization—sounding each word either orally or mentally as (11) reads.

To overcome these bad habits, some reading clinics use a device called an (12) , which moves a bar(or curtain) down the page at a predetermined speed. The bar is set at a slightly faster rate (13) the reader finds comfortable, in order to "stretch" him. The accelerator forces the reader to read fast, (14) word by word reading, regression and subvocalization practically impossible. At first (15) is sacrificed for speed. But when you learn to read ideas and concepts, you will not only read faster, (16) your comprehension will improve. Many people have found (17) reading skill drastically improved after some training. (18) Charlie Au, a business manager, for instance. His reading rate was a reasonably good 172words a minute (19) the training; now it is an excellent 1,378 words a minute. He is delighted that how he can (20) a lot more reading material in a short period of time.

第(19)空应选择()

A.for

B.in

C.after

D.before