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【单选题】
在matlab的命令窗口中执行()命令,可将命令窗口中所有变量清空。
A.
clear
B.
clc
C.
echooff
D.
cd
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【单选题】You use a SQL Server 2005 database named DB1, which is located on a server named SQL1. DB1 is in use 24 hours a day, 7 days a week. A recent copy of DB1 exists on a second server named SQLtest that al...
A.
Store the workload file on SQL1. Start DTA on SQLtest and connect to SQL1. Specify all workload and tuning options as necessary. In the Advanced Tuning Options dialog box, select the Generate only online recommendations check box.
B.
Store the workload file on SQLtest. Start DTA on SQLtest and connect to SQLtest. Specify all workload and tuning options as necessary. In the Advanced Tuning Options dialog box,select the generate only online recommendations check box.
C.
Store the workload file on SQL1. Start DTA on SQL1 and connect to SQL1. Specify all workload and tuning options as necessary. In the Advanced Tuning Options dialog box,select the All recommendations are offline check box.
D.
Store the workload file on SQLtest. Start DTA on SQLtest and connect to SQLtest.Specify all workload and tuning options as necessary.In the Advanced Tuning Options dialog box,select the All recommendations are offline check box.
【单选题】反映一个国家社会经济活动总体水平的最为重要的经济指标是
A.
GNP
B.
GDP
C.
NNP
D.
NFP
【简答题】Why does the engine also need a cooling system?
【单选题】You need to make structural changes to the cube. You also need to ensure that appropriate aggregations are created after the changes are made. What should you do?()
A.
Record a weeks user activity by using SQL Profiler. Apply structural changes. Replay the activity and then run the Usage Based Optimization Wizard.
B.
Apply structural changes. Run the Database Engine Tuning Advisor.
C.
Apply structural changes. Run the Usage Based Optimization Wizard.
D.
Record a weeks user activity by using SQL Profiler. Apply structural changes. Run the Database Engine Tuning Advisor.
【单选题】下列螺纹连接严密性最高的是
A.
圆锥外螺纹与圆柱内螺纹连接
B.
圆柱外螺纹与圆椎内螺纹连接
C.
圆椎外螺纹与圆椎内螺纹连接
D.
圆柱外螺纹与圆柱内螺纹连接
【简答题】二八定律是由 (国家) 的经济学家 提出的。
【判断题】轻型燃气轮机,又称航机改型燃气轮机:以航空涡轮发动机为基础发展而来;转速通常为8000∼30000RPM,一般需设减速装置驱动离心压缩机。Light gas turbine, also known as aircraft variant gas turbine: based on the development of aviation turbine engine; Speed is usuall...
A.
正确
B.
错误
【单选题】开环 V-M 调速系统优点是
A.
结构简单、系统稳定性好
B.
能够抑制扰动
C.
能提高系统的精度
D.
以上三个都是
【单选题】两根钢丝绳搭接时,并列绳头应拉紧,用不少于()钢丝绳夹正反扣装并紧固。
A.
1个
B.
2个
C.
3个
D.
4个
【简答题】通常减数分裂I分离的是同源染色体,所以称为_____分裂或_____分裂。
相关题目:
【单选题】You use a SQL Server 2005 database named DB1, which is located on a server named SQL1. DB1 is in use 24 hours a day, 7 days a week. A recent copy of DB1 exists on a second server named SQLtest that al...
A.
Store the workload file on SQL1. Start DTA on SQLtest and connect to SQL1. Specify all workload and tuning options as necessary. In the Advanced Tuning Options dialog box, select the Generate only online recommendations check box.
B.
Store the workload file on SQLtest. Start DTA on SQLtest and connect to SQLtest. Specify all workload and tuning options as necessary. In the Advanced Tuning Options dialog box,select the generate only online recommendations check box.
C.
Store the workload file on SQL1. Start DTA on SQL1 and connect to SQL1. Specify all workload and tuning options as necessary. In the Advanced Tuning Options dialog box,select the All recommendations are offline check box.
D.
Store the workload file on SQLtest. Start DTA on SQLtest and connect to SQLtest.Specify all workload and tuning options as necessary.In the Advanced Tuning Options dialog box,select the All recommendations are offline check box.