在资源管理器中要同时选定不相邻的多个文件，应使用“Shift”键。( ) - 查题网

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国家开放大学 / 计算机文化基础

在资源管理器中要同时选定不相邻的多个文件，应使用“Shift”键。( )

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计算机文化基础

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某土方工程，使用1m³挖掘机挖土自卸汽车运输,每施工100m3时需要人工费为46.40元,材料费为53.28元,机械费为1285.52元,已知其他直接费费率为4.7%,间接费费率为4%,企业利润率为7%,税率为11%,柴油预算价为5851.58元/t,限价为2990元/t,柴油用量为0.2t,求该土方工程单价(单位100m3，计算结果保留两位小数）.水利工程造价

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题型描述: 阅读理解The next time youˊre watching television, pay attention to the advertisements. Even if the ad is for a womanˊs personal product, or baby diapers, the chances are that a manˊs voice is used in the commercial. Why? Because a manˊs voice carries more weight and authority to many people. Advertising agencies hire psychologists to determine what makes people respond to an ad by purchasing the product. Most people are conditioned to obey their fathers. Advertisers know a kindly male voice talking about the product in the last five seconds of a commercial has a subliminal (潜意识的) effect on the consumer. The consumer obeys that voice, leading to the purchase of one brand over another. This is especially important in products that are basically the same, such as detergent, or washing powder. Research proves that most of these products are equally effective: the only difference may be the scent, or perhaps the color. But consumers may not be aware of that. There are exceptions, of course. My grandmother, who is 87 years old, is one of the few people not influenced by commercials. She turns the television sound off when a commercial comes on TV. When asked why, she replied, ″Men sell that stuff. And what does any man know about washing clothes?″1.Some products, such as washing powder, are basically the same, except for _ _ _ _ _ _ A. the priceB. the expiry dateC. the scent or colorD. the purchasing method2.The focus of the passage is on _ _ _ _ _ _ A. the visual effect of adsB. the beauties in adsC. the voice in adsD. the design of ads3.The products mentioned in the passage are mainly designed for _ _ _ _ _ _ A. womenB. menC. childrenD. old people4.According to the passage, a male voice usually appears _ _ _ _ _ _ an adA. in the middle ofB. all throughC. at the end ofD. at the beginning of5.A manˊs voice is often used in an ad because it carriesA. more informationB. more experienceC. more certaintyD. more influence专科英语II

关于FTP的描述，错误的是（）。网络实用技术基础