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{{B}}Singing Alarms Could Save the
Blind{{/B}} If you cannot see, you may not be able to find your way out of a burning building -- and that could be fatal. A company in Leeds could change all that{{U}} (51) {{/U}}directional sound alarms capable of guiding you to the exit. Sound Alert, a company{{U}} (52) {{/U}}the University of Leeds, is installing the alarms in a residential home for{{U}} (53) {{/U}}people in Sommerset and a resource centre for the blind in Cumbria. {{U}} (54) {{/U}} produce a wide range of frequencies that enable the brain to determine where the{{U}} (55) {{/U}}is coming from. Deborah Withington of Sound Alert says that the alarms use most of the frequencies that can be{{U}} (56) {{/U}} by humans. " A. where B. what C. that D. how 更多"阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的"的相关试题: [单项选择]
阅读下面的短文，文中有15处空白，每处空白给出4个选项。请根据短文的内容，从4个选项中选择1个最佳答案。 {{B}}Coffee{{/B}} The producers of instant coffee found their product strongly resisted in the market places despite their obvious advantages. Furthermore, the advertising expenditure for instant coffee was far greater than that for regular coffee. Efforts were {{U}} (51) {{/U}} to find the cause of the consumers’ seemingly unreasonable {{U}} (52) {{/U}} to the product. The reason given by most people was {{U}} (53) {{/U}} for the taste. The producers suspected that there might be {{U}} (54) {{/U}} reasons, however. This was confirmed by one of motivation research’s classic studies, one often cited in the trade. Mason Haire, of the University of California, {{U}} (55) {{/U}} two shopping lists that were identical except for one item. There were six items common to both lists: hamburger, carrots (胡萝卜), baking power, bread, canned peaches and potatoes, {{U}} (56) { A. done B. made C. taken D. put [单项选择] 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。
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