Which two events will cause a slave server to create a new relay log file?（）
A. Execution of the FLUSH LOGS statement
B. Starting of the SQL thread
C. Reaching the slave_pendign _jobs_size_max limit
D. Execution of FULSH TABLES WITH READ LOCK
E. Starting of the I/O thread
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Which of the following factors tends to increase scale formation on the saltwater side of a heat exchanger used in a diesel engine cooling water system?（）
A. Baffle plates that have been bent during prior removal
B. Leaks in the cooler tube nest
C. Operating the engine while maintaining a high sea water outlet temperature
D. A punctured sea water strainer supplying cooling water to the heat exchanger
智能电网旨在构建一张全美骨干电网、区域性电网、地方电网和微型电网等多层次的电力网络，以实现自动化、高效安全、稳定可靠、可灵活应变及品质有保障的电力供应。该计划将在（）年完成。
各单位的电力生产规程制度应包括（）等。
A. 安全工作规程
B. 电力调度规程
C. 现场运行规程
D. 检修工艺规程、质量标准
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