[单选]
Click the Exhibit button. Which statement is true about the classes and interfaces in the exhibit?（）

A . Compilation will succeed for all classes and interfaces.
B . Compilation of class C will fail because of an error in line 2.
C . Compilation of class C will fail because of an error in line 6.
D . Compilation of class AImpl will fail because of an error in line 2

针对某个问题或侧面而撰写的报告，属于按市场调查报告内容分类中的（）。综合报告。专题报告。研究性报告。技术报告。 Which command should the administrator use to display the IPL progress/LED code of the partition?（） lsled -m System -r lpar 。 lsrefcode -m System -r lpar 。 lshwinfo -m System -r led_code 。 lssyscfg -m System -r sys -F lpar_name,led_code。 Which WebSphere Commerce model demonstrates the RFQ process？（） Consumer direct store model。 Advanced B2B direct store model。 Demand chain store model。 Advanced Demand chain store model。 Marketplace hub store model。自治力 While tuning a SQL statement, the SQL Tuning Advisor finds an existing SQL profile for the statement that has stale statistics available. What would the optimizer do in this situation?（） It updates the existing SQL profiles with current statistics。 It makes the statistics information available to GATHER_STATS_JOB。 It initiates the statistics collection process by running GATHER_STATS_JOB。 It logs a warning message in the alert log so that the DBA can perform statistics collection manually。

Click the Exhibit button. Which statement is true about the classes and interfaces in the exhibit?（）

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[单选] Click the Exhibit button. Which statement is true about the classes and interfaces in the exhibit?（）

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[单选]
Click the Exhibit button. Which statement is true about the classes and interfaces in the exhibit?（）