何谓高频闭锁距离保护?高频闭锁距离保护有何优缺点?
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会计电算化仍然以会计恒等式和会计循环为基础,而且账簿体系也与手工会计相同。( )
A. 正确
B. 错误
采掘工作面的瓦斯检查,严格执行“一炮三检”制度,瓦斯浓度达到()时不准装药。
A. 0.5%
B. 1%
C. 1.5%
D. 2%
Which of the following best describes the purpose of using lifecycle services for deploying an advanced wireless solution?()
A. Maximize the number of services required to support advanced technologies.
B. Provide a consistent,repeatable,and proven method to ensure the network solution that is deployed delivers upon the customer’s goals for reliability and availability.
C. Reinforce customer confidence in partners selling products.
D. More clearly define the roles of account managers,systems engineers,and field engineers.
E. Create a more effective sales strategy for partners.
建设节水型社会()。
A. 包括按照水资源条件调整现有经济结构(含产业结构和种植业结构),优化配置水资源
B. 主要是加强节水工程建设
C. 不包括建立合理的水价形成机制,以及适时、适度、适地调整水价
D. 不包括开展节水宣传教育