车体上部正线漏电如何查找?

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问题:

车体上部正线漏电如何查找?

考点:车辆电工考试初级车辆电工考试初级车辆电工考试题库
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高尔基说过:“要爱惜自己的青春,世界上没有再比青春更美好的了,没有再比青春更珍贵的了!”青春对我们是如此重要,你打算怎样度过这段人生中的黄金时期?

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断路器在合闸位置时红灯亮,同时监视着跳闸回路的完好性。

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锤头松了,你能利用惯性的知识想办法使锤头紧套在锤柄上吗?说出你的办法和理由.

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Haikou: A shark was killed after being dragged to shore at Yalong Berth beach in Sanya, South China’s Hainan Province, on Sunday afternoon.

It was the first time a shark had been caught in the beach area, a popular tourist site in Hainan.

Local fishermen said they caught the 3-meter-long, l-ton shark by chance When they were fishing in sea water 1,000 metres deep near the beach.

Police temporarily(暂时)protected the shark while oceanographers decided whether it was a species belonging to State protection.

Fishermen later killed and sold the shark after oceanographers confirmed that it was a whale shark and therefore not under State protection.

The shark was believed to have drifted into the area from the deep sea due to strong waves caused last week by Typhoon Imbudo. It had no open injuries but experts said they believed it suffered from internal(内部的)bleeding.

Local police officer Fu Chenggeng said beachgoers should not feel threatened by sharks because the fish never attack human beings on their own initiative. Fu said he had never heard of any shark attacks at the Sanya beach since he first started work there eight years ago.

However, police said they will improve the security system to safeguard tourists’ safety on the beach.

1.A possible title of the article should be      .

A.Tourists in Danger              B.Killing Whale Shark

C.Shark Caught in Beach Area      D.Whale Shark in Danger

2.From the article it can be learned      .

A.the shark was caught because of obvious injuries 

B.the number of the whale shark may be small

C.typhoon Imbudo may have brought the shark to the area

D.it’s not unusual to see a shark on the beach

3.The underlined word “confirmed” probably means      .

A.said      B.believed       C.thought        D.made sure

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社区教育的组织者、发动者或催化者是()。

A、社区居民

B、社区工作者

C、政府

D、社区领导

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