You conned using SQL Plus to the root container of a multitenant container database (CDB) with SYSDBA privilege. The CDB has several pluggable databases (PDBs) open in the read/write mode. There are ongoing transactions in both the CDB and PDBs. What happens alter issuing the SHUTDOWN TRANSACTIONAL statement?（）

A、The shutdown proceeds immediately. The shutdown proceeds as soon as all transactions in the PDBs are either committed or rolledhack.

B、The shutdown proceeds as soon as all transactions in the CDB are either committed or rolled back.

C、The shutdown proceeds as soon as all transactions in both the CDB and PDBs are either committed or rolled back.

D、The statement results in an error because there are open PDBs.

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第1题

[多选题] An administrator account is granted the CREATE SESSION and SET CONTAINER system privileges. A multitenant container database (CDB) instant has the following parameter set: THREADED_EXECUTION = FALSE Which four statements are true about this administrator establishing connections to root in a CDB that has been opened in read only mode?（）

A、You can conned as a common user by using the connect statement. B、You can connect as a local user by using the connect statement. C、You can connect by using easy connect. D、You can connect by using OS authentication. E、You can connect by using a Net Service name. F、You can connect as a local user by using the SET CONTAINER statement.

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第2题

[单选题] 循环队列sq中，用数组elem存放数据元素，sq．front指示队头元素的前一个位置，sq．rear指示队尾元素的当前位置，队列的最大容量为MAXSIZE，则在队列未满时元素x入队列的主要操作为（）。

A、sq．rear= （sq．rear+1）mod MAXSIZE； sq．elem[sq．rear]=x； B、sq．elem[sq．rear]=x； sq．rear= （sq．rear+1）mod MAXSIZE； C、sq．front= （sq．front+1）mod MAXSIZE； sq．elem[sq．front]=x； D、sq．elem[sq．front]=x； sq．front= sq．front+1；

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第3题

[] 循环队列sq中，用数组elem存放数据元素，sq．front指示队头元素的前一个位置，sq．rear指示队尾元素的当前位置，队列的最大容量为MAXSIZE，则队列满的条件为（）。

A、A．sq．front= sq．rear B、B．sq．front= sq．rear+1 C、C．（sq．front +1）mod MAXSIZE= sq．rear D、D．（sq．rear+1）mod MAXSIZE= sq．front

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第4题

[多选题] 在因子实验设计分析结果中，以下对于回归效果的度量参数R-sq及R-sq（调整）描述正确的是（）

A、R-sq及R-sq（调整）称为确定系数与调整确定系数 B、R-sq及R-sq（调整）称为多元全相关系数与调整的多元全相关系数 C、R-sq及R-sq（调整）越大越好 D、R-sq及R-sq（调整）越接近越好

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第5题

[简答题] 由两台电动机M1、M2分别驱动两个工作台A和B，机构示意图如图所示。动作过程如下：（1）按下起动按钮后，工作台A由SQ1进至SQ2；（2）然后工作台B由SQ3自动进至SQ4；（3）然后工作台A由SQ2自动退至SQ1；（4）最后工作台B由SQ4自动退至SQ3。试画出逻辑关系图，标明各信号特性及电动机M1、M2正反转控制接触器的工作区间。

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第6题

[单选题] You work as the IT professional in an international company which is named wiikigo. You are experienced in implementing and administering a network operating system. You are specialized in configuring IP addressing and services. Configuring name resolution and network access and so on.Your company is desigiing its network. The network will use an IPv6 prefix of 2001:DB8: BBCC:0000::/53. You have to identify an IPv6 addressing scheme that will support 2000 subnets. Which network mask should you use?（）

A、You should use /63. B、You should use /64. C、You should use /61. D、You should use /62.

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第7题

[多选题] 后张法预应力筋的张拉程序正确的有：（）

A、0→σcon B、0→1.03σcon C、0→1.05σcon D、0→1.05σcon→持荷2min→σcon E、0→1.03σcon→σcon

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第8题

[单选题] 循环队列sq中，用数组elem[0‥25]存放数据元素，sq．front指示队头元素的前一个位置，sq．rear指示队尾元素的当前位置，设当前sq．front为20，sq．rear为12，则当前队列中的元素个数为（）。

A、8 B、16 C、17 D、18

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第9题

[单选题] You work as an ASP.NET Web Application Developer for SomeCompany. The company uses Visual Studio .NET 2010 as its application development platform. You create an ASP.NET Web application using .NET Framework 4.0. You are planning to deploy the ASP.NET Web application to a production server by publishing the Web application in Release conﬁguration. You must ensure that the connection string value in the Web.conﬁg ﬁle is updated to the connection string value of the production server during publishing. ̳

A、Add the following code to the Web.conﬁg ﬁle. B、Add the following code to the Web.release.conﬁg ﬁle. C、Add the following code to the Web.conﬁg ﬁle： D、Add the following code to the Web.release.conﬁg ﬁle.