农业发展要实现由通过市场间接调控向政府直接调控转变。
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中国人多地少,应该将城市群作为城镇化的主要空间载体。
A. 正确
B. 错误
废气分析仪的工作原理是用取样头导管和泵从汽车或拖拉机的()采集废气。
A. 排气门
B. 排气管
C. 消声器
D. 消耗声器外
利用电子商务服务站点(ASP、BSP)提供空间建设站点,企业只需提供有关材料,维护等工作有门户站点完成的网站实施方式为()
A. 租借
B. 外包
C. 自建
D. 托管
View the Exhibit to examine the output produced by the following query at three different times since thedatabase instance started and has experienced workloads of different capacities:SQL> SELECT substr(component, 0, 10) COMP, current_size CS, user_specified_size US FROM v$memory_dynamic_componentsWHERE current_size!=0;What do you infer from this()
A. The database instance is running with manual PGA management.
B. The database instance is running with manual shared memory management.
C. The database instance has the MEMORY_TARGET value set to a nonzero value.
D. All sessions are connected to the database instance in dedicated mode, and no RMAN or parallel queryoperations have been performed