电力二次系统安全防护的特点是具有系统性和完整性。

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问题:

电力二次系统安全防护的特点是具有系统性和完整性。

考点:电力水利自动化电力水利自动化题库
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A 16-year-old South Dakota boy who became lost while hunting and spent 16 hours alone in the Black Hills National Forest says he was scared but still managed to make a survival plan.

Austin DuVall, of Rapid City, became lost on Nov.3 while hunting with his father. He ran after a deer, and soon found himself alone. “I ran after a deer, but I didn’t get it,” he said. “Then I was really lost.”

He had only his hunting rifle(步枪) and the clothes he was wearing. He had no food or water and had nothing that could help him find his way to safety. “I knew that no one could hear me. I decided to just sleep and get up in the morning and find safety,” he said.

Austin climbed up on a rock and slept through the night. Then he awoke and relied on skills he learned in a hunter safety course. He followed a stream to an occupied cabin. The couple there called his parents and cooked him a breakfast. “ It’s probably one meal I’ll never forget for the rest of my life,” he said.

After DuVall’s disappearance, a lot of emergency officials and more than 100 volunteers went searching for him. “He wasn’t sitting there waiting for someone to come and find him,” said his father, Steve DuVall. “We didn’t find him; he found himself.”

Mike Kintigh, regional supervisor for the Game, Fish & Parks Department, said one or two hunters will go missing each year, but rarely for more than 24 hours. “We’re a little bit unique in the Black Hills as it’s hard to get lost for a very long time. That’s because we’ve got so many roads here compared to the Rocky Mountains,” Kintigh said. “You can certainly spend a very uncomfortable night in the woods like Austin did.”

小题1:After Austin realized he lost his way, he ___.

A.was very nervous but excited

B.cried aloud for help

C.tried to find a safe place

D.decided to sleep in the wild小题2: Who saved Austin according to his father?

A.The couple in the cabin.

B.Emergency officials.

C.Volunteers.

D.Himself.小题3:From what Mike Kintigh said, we learn that _______.

A.if someone gets lost in the Rocky Mountains, it is hard to find a way out

B.too many people go missing in the Black Hills every year

C.the rescue team is skillful enough to find the lost people in less than 24 hours

D.people who are lost in the Black Hills have to spend a night in the woods

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眼科手术麻醉的并发症有哪些?

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2010年11月2日,国家发改委介绍开展“十二五”规划建言献策活动情况,认真听取了来自各个方面的群众意见。这反映了公民参与民主决策,有利于 (    )

①保证决策绝对正确地反映国情民情                   

②增强公民的主人翁意识和责任感                   

③反映民意民智,保证决策的民主化和科学化         

④保证公民直接参与国家事务的管理               

A.①②

B.②③

C.②④

D.③④

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合理的穿孔工作制度必须达到较高的()。

题型:判断题

安装离心泵时,要求填料压盖与轴套外径间隙为()。

A.0.1~0.25mm

B.0.25~0.50mm

C.0.50~0.75mm

D.0.75~1mm

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