【单选题】You are managing an Oracle Database 11g database. You want to take a backup on tape drives of the USERS tablespace that has a single data file of 900 MB. You have tape drives of 300 MB each. To accomp...
A.
The SBT channel must be configured, with the MAXPIECESIZE set to 300 mb.
B.
The SBT channel must be configured, with the parallelism setting for the SBT devices set to 3.
C.
The COMPATIBLE initialization parameter for the database instance must be set to at least 10.0.
D.
The SBT channel must be configured, with the default parallelism setting for the SBT devices set to 1
【多选题】Given the above diagram and assuming that STP is enabled on all switch devices, which two statements are true?()
A.
DSW11 will be elected the root bridge.
B.
DSW12 will be elected the root bridge.
C.
ASW13 will be elected the root bridge.
D.
P3/1 will be elected the nondesignated port.
E.
P2/2 will be elected the nondesignated port.
F.
P3/2 will be elected the nondesignated port.
【判断题】Devices that are portable, but used while stationary, are sometimes removed from the group of mobile computing devices.
【简答题】城市用地平衡 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【单选题】电路如图所示,其中U>0,I<0,关于此电路说法正确的是:( )
【简答题】???? ????????????Questions 11 to 15 are based on the following passage:???? ??It is recently estimated that the book industry is trying to get a good read on its future. These days, instead of turning...
【多选题】下列哪些在中华人民共和国行政区域内直接或间接向环境排放污染物的企业事业单位、个体工商户(以下简称排污者),应按规定申请领取排污许可证:
A.
直接或间接向环境排放工业废水和医疗废水以及含重金属、放射性物质、病原体等有毒有害物质的其他废水和污水的;城镇污水集中处理设施的运营者。
B.
在工业生产中因使用固定的设备产生环境噪声污染的,或者在城市市区噪声敏感建筑物集中区域内因商业经营活动中使用固定设备产生环境噪声污染的。
D.
向海洋倾倒废物、种植业、非规模化畜禽养殖场和养殖小区排放污染物以及机动车、铁路机车、船舶、航空器等移动源排放污染物的。
【单选题】美国国家地理科学家通过利用电脑模拟,寻找海洋颜色与强热带气旋之间的联系。研究最近发现,海水颜色能够让飓风改变方向,也就是说,如果海水变色,飓风也会变向。值得关注的是,全球气候变暖可能已经让海水变色,这也就意味着科学家可以根据海水的“脸色”判断哪些地区将被飓风袭击,哪些地区又会幸免于难。 以下哪项如果为真,最能作为上述论证的理论依据?( )
A.
海水的绿色归功于大量的浮游植物,其数量越少,来自太阳的热量就越集中在更深的海洋区域,而温暖的表面海水才是强热带气旋的动力来源
B.
由于海洋表面变暖,所混合的较冷较深海水更少,后者含有大量海洋营养物质,生活在浅水域的浮游植物因此被饿死,海洋颜色变浅
C.
2004年的丹麦海域,浮游植物生长旺盛,海水呈绿色,于是年底发生了海啸灾难
D.
北太平洋环流被人为地去除了颜色和热量后,离开热带并向北移动的飓风数量与正常情况相比减少了三分之二,所以在没有温暖表面海水的支持下,风暴难以维系