男性，67岁，右腹股沟区肿块1年，渐增大，但晚间卧床后肿块缩小。昨突发右下腹痛，伴呕吐2次，腹痛阵发性加重。体格检查：全腹平软，右下腹压痛，无肌紧张，肠鸣音8～12次／分，偶闻气过水声。男性，56岁，右上腹胀痛3个月伴黄疸半月余。体检：肝肋下3cm，剑突下4cm，质硬，移动性浊音(+)。最可能的诊断为（）
A. 晚期肝癌
B. 肝硬化
C. 细菌性肝脓肿
D. 胆总管结石
E. 肝炎
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The bos.perf package is part of the base operating system. Performance Diagnostic tool， PDT， is a part of bos.perf. All of the following statements are true EXCEPT？（）
A. PDT attempts to identify performance problems automatically by collecting and integrating a wide range of performance， configuration and availability data.
B. PDT consists of three components， the collection component comprises a set of programs that periodically collect and record data， the retention component periodically reviews the collected data and discards data that is obsolete， and the reporting component periodically produces a diagnostic report from the current set of historical data.
C. PDT contains motif-based， AIX licensed programs that can easily access tools for system and network performance tuning， monitoring， and analysis.
D. PDT assesses the current state of a system and tracks changes in workload and performance. It attempts to identify incipient problems and suggest solutions before the problems become critical.
冲一杯咖啡的水量应倒至杯中满（）为宜。
A. 五分
B. 七分
C. 八分
D. 十分
在高层建筑中，燃油、燃气锅炉房应布置在（）。
A. 建筑的地下三层靠外墙部位
B. 建筑的地下二层靠外墙部位
C. 建筑的首层或地下一层靠外墙部位
D. 建筑的地上二层靠外墙部位
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