(三)分析题 根据分析，当自动喷水灭火系统失效，机械排烟系统均有效时，当音乐厅发生火灾，建筑内的人员不能够在危险来临之前通过疏散楼梯或相邻防火分区疏散到安全区域。而音乐厅的消防安全既是相对的，又是一个完整的系统总体性能的反映。为此，请对本工程的消防安全设计及业主提出相应的消防安全管理建议。
In a recent study, sedentary middle-aged men who drink more than two cups of coffee a day
A sedentary style. of life increases levels of cholesterol in the blood.
B. Coffee contains caffeine, which acts as a stimulant that increases heart rate.
C. The men studied drank their coffee without milk or cream, which contain cholesterol.
D. In both groups, the men were likely to be overweight, and excess weight is a factor that increases risk of heart diseases.
E. The men who drank more than two cups of coffee a day also ate more foods high in cholesterol.
Shelby Industries manufactures and sells the same gauges as Jones Industries. Employee wages account for forty percent of the cost of manufacturing gauges at both Shelby Industries and Jones Industries. Shelby Industries is seeking a competitive advantage over Jones Industries. Therefore, to promote this end, Shelby Industries should lower employee wages. Which of the following, if true, would most weaken the argument above？
A. Because they make a small number of precision instruments, gauge manufacturers cannot receive volume discounts on raw materials.
B. Lowering wages would reduce the quality of employee work, and this reduced quality would lead to lowered sales.
C. Jones Industries has taken away twenty percent of Shelby Industries business over the last year.
D. Shelby Industries pays its employees, on average, ten percent more than does Jones Industries.
E. Many people who work for manufacturing plants live in areas in which the manufacturing plant they work for is the only industry.
The average age of chief executive officers(CEOs)in a large sample of companies is The average age of CEOs in those same companies 20 years ago was approximately eight years younger. On the basis of those data, it can be concluded that CEOs in general tend to be older now. Which of the following casts the most doubt on the conclusion drawn above？
A. The dates when the CEOs assumed their current positions have not been specified.
B. No information is given concerning the average number of years that CEOs remain in office.
C. The information is based only on companies that have been operating for at least 20 years.
D. Only approximate information is given concerning the average age of the CEOs 20 years ago.
E. Information concerning the exact number of companies in the sample has not been given.
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