题目内容

制定班级管理的目标应符合班级管理对象的实际是目标设定的()原则的要求。

A. 发展性原则
B. 针对性原则
C. 层次性原则
D. 规律性原则

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输气干线一般包括线路、首站、()、压气站、()、清管站、()、防腐站等。

You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. A user reports that when he runs a query, it takes a quite long time and it is still unfinished. As the IT support, you have to verify whether the query is blocked. Which tool should you use? ()

A. You should use the Database Engine Tuning Advisor tool
B. You should use the Windows System Monitor tool
C. You should use the Job Activity Monitor tool in Microsoft SQL Server Management Studio
D. You should use the Activity Monitor tool in Microsoft SQL Server Management Studio

滑道下限位

轻骨料混凝土的水泥用量不应()。

A. >400kg/m3
B. >450kg/m3
C. >500kg/m3
D. >550kg/m3

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