按照人们的生活方式、社会阶层或性格特征等来划分市场的方法叫()。
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电缆穿过甲板时,必须用金属电缆管、电缆筒或电缆围板加以保护。
A. 正确
B. 错误
What are two benefits for the Cisco Partner, derived from the Cisco SBR Methodology?()
A. Proactive planning enhances customer satisfaction
B. Solution differentiation from the competition allows for premium margins
C. Thereare faster implementation of new business applications
D. There is less risk through the implementation of proven solutio
我国《中小学校教室换气卫生标准》(GB/T17226-1998)规定教室内空气中CO2最高允许浓度为()
A. 0.05%
B. 0.10%
C. 0.12%
D. 0.15%
E. 0.25%