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论述题 施工人员在安装某锅炉厂锅炉的安全附件时进行了如下操作。请判断施工人员的做法是否正确，并给出理由。 (1)该锅炉厂额定蒸发量为0.6t/h的锅炉，安装了一个溢流阀。 (2)每台锅炉均装设了一个水位表。 (3)减压阀组前后均装设了压力表。
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以下程序中函数f的功能是在数组X的n个数(假定n个数互不相同)中找出最大最小数，将其中最小的数与第一个数对换，把最大的数与最后一个数对换。请填空。 #include＜stdio.h＞ void f(int x[], int n) int p0, p1, i, j, t, m; j=j=x[0]; p0=p1=0 for (m=0; m＜n; m++) if(x[m]＞i)i=x[m]; p0=m; else if(x[m]＜j)j=x[m]; p1=m; t=x[p0]; x[p0]=x[n-1]; x[n-1]=t; t=x[p1]; x[p1]= (11) ; (12) =t; main() int a[10], u; for(u=0; u＜10; u++)scanf("%d", ＆a[u]); f(a, 10); for(u=0; u＜10; u++)printf("%d", a[u]); printf("\n")：
On the last shopping day before Christmas, stores across the United States were busy but not jam-packed as shoppers scrambled for last-minute gifts, even though some refused to admit it. At Boston’s Copley Mall, a small crowd gathered outside the main entrance of luxury department store Neiman Marcus, but no one waiting for the store to open would admit to being a last-minute shopper. "I’m really here to use a gift certificate and get something for myself and maybe someone else with what’s left over," said Matt Doran, who lives in Boston and had been waiting since 8:30 a.m. for the store’s 10 a.m. opening. Ilya Polykoff, who moved to Boston from Russia, said he was waiting "because I had the day off and I wanted to get some perfume." But he insisted that he was really shopping early because for him Christmas comes in January. The Orthodox Christmas will be celebrated on Jan. 7. "There are lots of men out there today," said Karen McDonald, a spokes-woman for mall operator Taubman Centers, after returning from the Lakeside Mall in Sterling Heights, Michigan. "There is panic out there but people seem to be in good spirits," she said, adding that most shopping traffic peaked around midday. According to the International Council of Shopping Centers, December 24 was the sixth busiest holiday shopping day in 1997, while 44 percent of holiday sales were recorded in the December 15 to December 24 period. Ed Nally, manager of the Swatch Store known mostly for its brightly colored plastic watches, described the atmosphere as festive rather than crazed. He did say, however, that Dec. 21 was the turning point date, after which shoppers started. "The closer to Christmas, the crazier they get," Nally said. "They become more agitated, less patient." He said red-hot items this year were phones, beepers and the new digital swatch watch that costs $ 70 and came onto the market a week before Christmas. The best title for this passage is ______.
Passage One Questions 26 to 28 are based on the passage you have just heard.
AgNO3标准溶液应装在棕色瓶中。( )
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