《国家电网公司信息系统安全管理办法》中明确定义:()是本单位网络与信息安全第一责任人

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问题:

《国家电网公司信息系统安全管理办法》中明确定义:()是本单位网络与信息安全第一责任人,各单位信息化领导小组负责本单位网络与信息安全重大事项的决策和协调。

A.信息安全专责

B.信息部门领导

C.各单位主要负责人

D.信息系统用户

考点:信息技术系统性应用信息技术系统性应用综合练习信息技术系统性应用综合练习题库
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蛋白质变性时,不受影响的结构是()

A.蛋白质一级结构

B.蛋白质二级结构

C.蛋白质三级结构

D.蛋白质四级结构

E.单个亚基结构

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连续缺()个刮板的刮板输送机为不完好设备。

A、2

B、3

C、4

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旅游经济效益是旅游经济活动投入与有效产出之间的比较,用价值形式表示,即为费用与收入之间的比较。( )

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未经税务机关批准,不得()发票。

A.转借

B.拆本使用

C.转让

D.代开

题型:单项选择题


A patrol team of sea lions and dolphins featured in a large-scale military exercises being conducted by the U. S. and its allies in the Pacific Ocean. The machine (1) took part in simulated mine recovery and mine detection missions during the biennial Rim of the Pacific Exercise (RIMPAC) war games. The (2) started on June 19 and will run (3) Friday.
"There are a number of mechanical systems that work in those areas. (4) high-tech gadgets deployed by the military can’t (5) the natural skills of dolphins and lions," said Tom Lapuzza, spokesman for UN Navy’s Marine Mammal Program. Sea lions have "incredible good underwater (6) " and can dive down to 300 meters to catch a recovery line to a mine, he said. Dolphins use sonar to (7) mine.
Human beings have a long (8) of training animals to join the military. Horses have been the most widely-used animals (9) the recorded history of (10) . In early times, horses were used to (11) chariots or to (12) armored forces. With the development of modem weapons and motorized (13) , the use of horses for military purposes fell into (14) . (15) , horses were still used (16) by the German army during World War II for transporting (17) and equipment, including artillery.
During World War II, (18) with explosives strapped to their backs were used as anti-tank weapons. In other (19) , they were used for detecting mines. Some dogs were also used as messengers.
Other animals have also (20) in the military. Recorded history shows the use of elephants for military purposes as early as 1,100 B. C.. They were employed during World War II by both the Japanese army and the (21) .
There are records showing that over 100,000 reindeer were used by Finland to tow sleds during World War II. They carried the (22) to hospitals, brought supplies to the troops and moved heavy anti-tank weapons. It is well documented that oxen have been (23) used in war as improvised beasts of burden. During World War II, spiders were employed by the Allies to spin silk for (24) in cross-hairs on bomb scopes and other optical instruments. People also are finding that Vampire bats’ ability to use echolocation is very interesting as we (25) to learn how it works and it may benefit the army.

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