发现变压器高阻柜漏电保护动作后,如何排除故障?

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问题:

发现变压器高阻柜漏电保护动作后,如何排除故障?

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Beautiful pictures of mountains and forests, clear skies, flying birds, wild animals, silly faces — you can find them all in one place. 46  ? On a postcard! Have people always sent postcards? No! Before postcards, people  47 sealed (密封的) letters.
The 48  for the first decorated (装饰的) postcard came to John P. Charlton in 1861. He thought a simple card  49 a border would be a great way to send a note. Then in the late 1800s, postcards which had pictures on them 50  . By law, people had to write their note on the front—on the picture! The back was 51 for the address. Several years later, England allowed a divided-back (背面隔开的) postcard. Then people could write their 52  on the back left side. And they put the address 53 . During the early 1900s, the golden age of postcards, people around the world were more and more 54  picture postcards. In 1908, Americans alone mailed over 677 million postcards.
Today, postcards are the 55  most popular collection in the world after stamps and coins. You can always see or get a lot of newly-designed postcards, especially on New Year's Day.
小题1:
A.How B.When C.Why D.Where
小题2:
A.liked B.hated C.found D.lost
小题3:
A.advice B.picture C.idea D.card
小题4:
A.above B.with C.under D.for
小题5:
A.happened B.changed C.ended D.appeared
小题6:
A.even B.only C.still D.ever
小题7:
A.note B.word C.address D.letter
小题8:
A.on the frontB.on the back C.on the left D.on the right
小题9:
A.surprised atB.interested in C.expected by D.worried about
小题10:
A.first B.second C.third D.fourth
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三个点电荷电场的电场线分布如图所示,图中a、b两点出的场强大小分别为Ea、Eb,电势分别为φa、φb,则(  )

A.Ea>Eb

B.Ea<Eb

C.φa<φb

D.φa>φb

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关于电接触伤,叙述正确的是()

A.有"入口"和"出口"

B.通常"出口"损伤较重

C.补液量和一般烧伤相同

D.应尽早清创,覆盖创面

E.合并内脏、神经、血管损伤很常见

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在社会再生产的过程中,使社会成员拥有价值与使用价值相分离的是()。

A.生产

B.交换

C.分配

D.信用

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