加工中心按照主轴在加工时的空间位置分类，可分为（）和万能加工中心。
A. 镗铣、钻削
B. 卧式加工中心
C. 钻削
D. 立式、卧式
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准予发证的，发证部门应当在（）个工作日内向申请人颁发《特种设备作业人员证》
A. 5
B. 10
C. 20
经电流互感器的三相四线电能表电流二次回路带电压接法，互感器二次侧不准接地。
A. 正确
B. 错误
低压装置安装要符合当地供电部门低压装置规程及国家有关工艺、验收规范的要求。
A. 正确
B. 错误
The Cisco Lifecycle Services approach for wireless solutions provides a framework for which of the following opportunities？（）
A. partners having a discussion with customers about the minimum service components needed to successfully deploy a wireless solution
B. customers determining a competitor’s strategy for adopting advanced technologies
C. partners choosing the right products for their customers
D. customers choosing the right products for their network
E. customers defining the correct strategy for advanced technology adoptio
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