体育锻炼为什么不容易持之以恒
临近期末考试，大二的张同学为学习问题感到很苦恼。原来是该同学上大学后自觉高考分数在班上靠前，学习有所松懈，但经过几次考试后发现自己在班上的成绩排名越来越差，于是开始在学习上花很多精力，但起色不大，感觉学习很吃力，有些焦虑和灰心。试根据归因理论并结合大学的学习特点及学习方法对张同学展开帮助。如何帮助张同学提高复习效果呢（） ["明确复习的目的意义","及时复习","复习方法多样化","充分调动各种分析器官一起活动"]
The operating system under the covers of the SONAS device is which of the following?（） [" IBM AIX "," Novell SUSE Linux "," Microsoft Windows "," Red Hat Enterprise Linux"]
一般情况下，剂量－反应曲线包括的类型有（）。 ["直线型","抛物线型","S型曲线","“全或无”反应"]
You are a professional level SQL Server 2005 database administrator in an international corporation named Wiikigo. You are experienced in implementing high-availability solutions， monitoring the database server， and design deployment. In the company， you major job is the deployment， maintenance and support of Microsoft SQL Server 2005. You work as the administrator of a SQL Server 2005 computer. And recently the server performs gradually slowly. The indexing environment is troubleshooted by you. The clustered indexes are rebuilt by you， and the clustered indexes are utilized the most frequently. The most frequently accessed nonclustered index will be optimized by you. The sys.dm_db_index_usage_stats dynamic management view （DMV） is accessed by you. You can see the results from the table listed below. When the entire index is not read， the nonclustered index which is being utilized the most frequently should be identified. From the following four object_id and index_id combinations， which one should be utilized to finish the task？（） ["To finish the task， the object_id 869578136 and the index_id 1 should be utilized.","To finish the task， the object_id 869578136 and the index_id 5 should be utilized.","To finish the task， the object_id 309576141 and the index_id 1 should be utilized.","To finish the task， the object_id 2066106401 and the index_id 1 should be utilized.","To finish the task， the object_id 2066106401 and the index_id 2 should be utilized."]
周卫报告中指出：专家教师相对于职初教师、经验教师，在知识结构上（）占有较大优势。
