Oracle9i offers the ability to monitor the dynamic use of the SGA through the DB_CACHE_ADVICE parameter. When this parameter is set to READY, what is its effect? ()
A、The Advisory is on and will capture both CPU and memory overhead.
B、The Advisory is on but the memory for the Advisory is not allocated.
C、The Advisory is off and the memory for the Advisory is not allocated.
D、The Advisory is off but the memory for the Advisory remains allocated.
现有如F包结构: com |一一X | |一一Alpha.class | | | |一一y I |一一Beta.class | |l-- Gamma.class 和类: class Test { Alpha a; Beta b; Gamma c; } 哪三个必须加入到类Test中,以使其通过编译?()
Apackage y;
Bpackage com;
Cimport com.x.y.*;
Dimport com.x.*;
男性,78岁,高血压30余年,因与他人争吵,突然出现头痛、呕吐、言语不清、跌倒在地,之后神志不清,大小便失禁。查体:昏迷,左侧瞳孔8mm,右侧3mm,血压180/100mmHg,呼吸16次/分,脉搏54次/分。头颅CT示一侧基底节内囊区高密度影。考虑患者出现上述病症的原因是()
A、脑出血
B、脑梗死
C、短暂性脑缺血发作
D、蛛网膜下腔出血
E、脑肿瘤破裂
You issue these LSNRCTL commands: LSNRCTL> SET CURRENT_LISTENER listener01 LSNRCTL> START listener02 What is the result of issuing these commands?()
A、A listener named LISTENER is started.
B、A listener named LISTENER01 is started.
C、A listener named LISTENER02 is started.
D、The START command fails and no listener is started.
Math.random()方法用来实现什么功能?下面的语句起到什么作用?(int)(Math.random()*6)+
搜索指定的网站时,不能()。
A、要有“http://”前缀
B、要有任何“/”的目录后缀
C、要使用“域名/频道名”方式
D、要使用“频道名.域名”方式