喷油器的作用是什么?对它有什么要求?

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喷油器的作用是什么?对它有什么要求?

考点:柴油机燃料供给系柴油机燃料供给系题库
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B

The largest earthquake (magnitude里氏9.5 ) of the 20th century happened on May 22, 1960 off the coast of South Central Chile.

It generated (生成) one of the most destructive Pacific-wide tsunamis (海啸). Near the

generating area, both the earthquake and the tsunami were very much destructive, particularly in the coastal area from Concepcion to the south end of Isla Chiloe. The largest tsunami damage occurred at Isla Chiloe-the coastal area closest to the epicenter(震中). Huge tsunami waves measuring as high as 25 meters arrived within 10 to 15 minutes after the earthquake, killing at least two hundred people, sinking all the boats, and flooding half a kilometer inland.

There was large damage and loss of life at Concepcion, Chile’s top industrial city. Near the city of Valdivia, the earthquake and following aftershocks generated landslides which killed 18 people. At the port city of Valparaiso, a city of 200,000, many buildings collapsed. A total of 130,000 houses were destroyed--one in every three in the earthquake zone and nearly 2,000,000 people were left homeless.

Total damage losses, including to agriculture and to industry, were estimated(估计) to be over a half billion dollars. The total number of deaths related with both the tsunami and the earthquake was never found accurately for the region. Estimates of deaths reached between 490 to 5,7002 with no distinction(差别) as to how many deaths were caused by the earthquake and how many were caused by the tsunami. However, it is believed that most of the deaths in Chile were caused by the tsunami.

Where did the largest tsunami damage occur().

A. Concepcion.

B. Isla Chiloe.

C. Valdivia.

D. Valparaiso.

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如果∠α=37°,则∠α的补角的度数为(    )。

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海关调查走私案件时,无须经直属海关或其授权的隶属海关关长批准,可以直接查询案件涉嫌单位和涉嫌人员的存款和汇款。 ( )

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战略管理时代开始于()。

A.上世纪50年代初

B.上世纪60年代初

C.上世纪70年代初

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有先履行义务的当事人认为对方有法定可以中止履行的,中止履行之后正确的做法是()。

A.提出对方提供适当担保的合理期限

B.对方在合理期限内未恢复履行能力并且未提供适当担保的,本方可以解除合同

C.对方提供适当担保时恢复履行

D.及时通知对方本方恢复履行

E.立刻解除合同

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