根据《水利水电土建工程施工合同条件》通用条款,判断下列哪些说法是正确的?()
A. 发包人应委托监理人按合同规定的日期前向承包人发布开工通知
B. 发包人应在开工通知发出前安排监理人及时进入工地开展监理工作
C. 发包人应按合同规定,完成由发包人承担的施工准备工程,并按合同规定的期限提供承包人使用
D. 监理人可自行向承包人发布开工通知
E. 发包人应按合同规定负责办理由发包人投保的保险
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8255A中既可以作为数据输入、输出端口,又可以提供控制信息、状态信息的端口是()。
A. 端口A
B. 端口B
C. 端口C
D. 控制口
What two statements are true regarding the recommendations received from the SQL Access Advisor?()(Choose two.)
A. It cannot generate recommendations that support multiple workload queries.
B. It can recommend partitioning on tables provided that the workloads have some predicates and joins on the columns of the NUMBER or DATE type.
C. It can recommend partitioning only on tables that have at least 10,000 rows.
D. It can recommend only B-tree indexes and not bitmap or function-based indexe
Which determines if “prefs” is a directory and exists on the file system?()
A. Boolean exists=Directory.exists (“prefs”);
Boolean exists=(new File(“prefs”)).isDir();
C. Boolean exists=(new Directory(“prefs”)).exists();
D. Boolean exists=(new File(“prefs”)).isDirectory();
E. Boolean exists=true; Try{ Directory d = new Directory(“prefs”); } catch (FileNotFoundException e) { exists = false; }
充分发挥教师的主导作用,启发学生在短时间内获得大量的系统的有关思想道德方面知识的德育方法是()
A. 说服教育法
B. 榜样教育法
C. 陶冶教育法
D. 品德评价法