动力负荷和直流事故照明负荷专用蓄电池组的电压宜采用( )。 A.24V; B.4

题型:单项选择题

问题:

动力负荷和直流事故照明负荷专用蓄电池组的电压宜采用( )。

A.24V;
B.48V;
C.110V;
D.220V。

考点:注册电气工程师发输变电专业注册电气工程师发输变电专业知识
题型:单项选择题

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     Ed Viesturs grew up in Rockford,Illinois,where the tallest thing on the horizon was the water tower.But

on Thursday,Viesturs became the only American to climb to the top of the world's 14 highest mountains.

     His last hike was up Mount Annapurna,in Asia's snowcapped Himalayas.At 26,545 feet,its peak is the

10th highest in the world,It is the mountain that inspired him to start climbing.

     "It tends to be the trickiest,the most dangerous,"said Viesturs."There's no simple way to climb it.There

are threatening avalanches(雪崩)and ice falls that protect the mountain."

     In high school,Viesturs read French climber Maurice Herzog's tale of climbing the icy Annapurna.

Herzog's story was of frostbite(冻伤)and difficulty and neardeath experiences.Viesturs was hooked right

away.

     Viesturs got his start on Washington's Mount Rainier in 1977,guiding hikes in the summer.Fifteen years

ago,he set out to walk up to the world's highest peaks.Finally,he's done.

     The pioneering climber talks about mountains as if they were living creatures that should be treated with

respect."You have to use all of your senses,all of your abilities to see if the mountain will let you climb it,

"said Viesturs."If we have the patience and the respect,and if we're here at the right time,under the right 

circumstances,they allow us to go up,and allow us to come down."

     What's next for a man who can't stop climbing?"I'm going to hug my wife and kids and kind of kick

back and enjoy the summer,"says Viesturs.But for a man who's climbed the world's 14 tallest mountains,

he will probably soon set off on yet another adventure.

1.What record has Ed Viesturs set?

A.He has succeeded in climbing to the world's 14th highest mountain.

B.He has been to the top of the world's 14 highest mountains.

C.He has become the first to climb to the height of 26,545 feet.

D.He has become the first man to climb to the top of 14 highest mountains in the world.

2.The underlined word "hooked" in Paragraph 4 can be replaced by "________".

A.frightened  B.discouraged

C.interested  D.upset

3.The author used Viesturs's words in Paragraph 6 to support a view that ________.

A.mountain climbing is a dangerous sport

B.mountains should be regarded as living creature

C.mountain climbing needs more skills than physical energy

D.those who like mountain climbing won't stop climbing

4.What's the next probable plan of Viesturs?

A.Stopping climbing and staying with his family.

B.Climbing to the top of the world's 14 tallest mountains again.

C.Climbing another one of the highest mountains.

D.Writing down the experiences about his adventure.

5.用30词左右概括文章大意

________________________________________________________________________

题型:单项选择题



Which of the following statements is true according to the speaker

A.It will be in orbit on March 15.

B.Fleas are infesting the pets.

C.Yours is a position of great honour.

D.March 15 is the last day to submit a petition.

题型:单项选择题

下列属于社会主义国家和资本主义国家共有的政府职能是:

A.提供公共物品

B.维护某种占统治地位的意识形态

C.维护市场秩序

D.向弱势群体提供救助

题型:单项选择题

(2004,16)甲委托乙通过海运运送货物一批.甲先支付一半运费,另一半运费约定货物到港后再支付。货船在途中突遇暴风雨沉没,该批货物灭失。按照《合同法》的规定下列说法正确的是( )。

A.因为货物遭遇不可抗力灭失,甲未付的运费不需要支付,但不能要求乙返还已经支付的运费

B.虽然货物灭失.甲仍然应当支付全部运费

C.因为货物遭遇不可抗力灭失,甲不需要支付运费.还町以要求乙返还已支付的运费

D.货物在运输途中遭遇不可抗力灭失,甲有权要求乙赔偿损失

题型:单项选择题

镀锡板俗称()口铁。

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