盾构机安装、拆卸，负环拆除中哪些设备需制定专项方案？
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碳生产力是指（）
A. 产生单位GP所排放的碳当量的总量
B. 一个国家生产化石能源的能力
C. 单位碳当量的排放所产出的GP总量
无菌罐的大修周期是1500小时。
A. 正确
B. 错误
A customer has a large UNIX environment and has engaged a pSeries technical specialist to work on a solution with them. Which of the following statements would best establish UNIX credibility with a knowledgeable customer？（）
A. The technical support specialist has completed a UNIX course at college.
B. The technical specialist has supported several similar projects and has earned an IBM AIX certification.
C. The technical support specialist’s company sells $3M of UNIX computer systems every year.
D. The technical support specialist has sold and installed at least a dozen Apple and iSeries systems with POWER processors.
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