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【单选题】
下列关于防火墙的说法,不正确的是()。
A.
防止外界计算机攻击侵害的技术
B.
是一个或一组在两个不同安全等级的网络之间执行访问控制策略的系统
C.
隔离有硬件故障的设备
D.
属于计算机安全的一项技术
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参考答案:
举一反三
【单选题】Although the small room is        the large one, it is more beautifully decorated.
A.
one- third the size of
B.
the one- third size of
C.
the size of one-third
D.
one-third of the size
【单选题】In the last paragraph, the expression 'once the boiler is lit under it' most probably means 'when American industry is______'.
A.
undermined
B.
upgraded
C.
incensed
D.
stimulated
【单选题】We should be much ___________ if you could quote us the best CIF Tianjin.
A.
obliged
B.
appreciating
C.
appreciable
D.
thanks
【简答题】如图是人体血液循环示意图,其中A,B,C,D代表心脏的四个腔,箭头代表血流方向.请根据图回答下列问题. (1)进餐1小时后,与①处相比,②处血液中营养物质含量的变化是______(填“增多”、“减少”或“不变”). (2)血液流经“B→⑤→肺→⑥→C”的循环途径称为______;经过该循环途径,血液性质发生的变化是______. (3)血液流经肾脏后,④处血液中尿素的含量与③处相比______(填...
【单选题】Dao, in its most literal sense, refers to ______.
A.
book
B.
road
C.
law
D.
ritual
【单选题】The small intestine is the main site of absorption, which is mainly related to the characteristics of the small intestine ?
A.
Its length is long
B.
Intestinal wall of small intestine is very thick
C.
High intestinal permeability
D.
The absorption area of small intestine is large
E.
There are many digestive enzymes in the small intestine.
【简答题】Diaoyu Dao and its affiliated (附属) islands, which consist of(由…组成)Diaoyu Dao, Huangwei Yu, Chiwei Yu, Nanxiao Dao, Beixiao Dao, Nan Yu, Bei Yu, Fei Yu and other islands, are in the northeast of China’...
【单选题】Dao, in its most literal sense, refers to
A.
road
B.
ritual etiquette
C.
law
D.
book
【单选题】Dao, in its most literal sense, refers to ()
A.
ritual etiquette
B.
law
C.
book
D.
road
【单选题】Dao, in its most literal sense, refers to
A.
ritual etiquette
B.
road
C.
law
D.
book
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