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In C program, all variables must be (1) before use, usually at the beginning of the function before any (2) statements.
A．stated
B．instructed
C．illustrated
D．declared
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单选题You are proceeding down a channel and lose the engine（s）.You must use the anchors to stop the ship.Which statement is true（）.A
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For a mud，mud and clay，or sandy bottom pay out a scope of 5 to 7 times the depth before setting up on the brakeC
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单选题Your business has departmental reports that are generated every day. Each department must use the same set of queries， but accesses a different subset of data in the tables， depending on which department generates the report. The format of the reports is being developed; currently， the format changes daily. How would you configure the database to ensure that each department generates its report （based on its target data） using the most recent report format every day？（）A
by having each user run the report generation procedure at the scheduled time， supplying the necessary input variablesB
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by having each user create a job using DBMS_SCHEDULER that includes all the information and commands necessary to generate the reportE
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多选题Which of the following statements about variables and their scopes are true？ （）AInstance variables are member variables of a class.BInstance variables are declared with the static keyword.CLocal variables defined inside a method are created when the method is executed.DLocal variables must be initialized before they are used.
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多选题Which two statements about workload capture and replay operations are true?（）AThe clients must be created manually on the test machines to perform more realistic testing.BRestart the database in RESTRICTED mode before beginning workload replay to enable a clean state for workload replay.CRestart the database in RESTRICTED mode before beginning workload capture to enable a clean state for capturing the workload.DThe application state of the capture system must be identical to the application state of the replay system when the workload replay begins.
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