若500型指针式万用表的表笔香蕉插头处的导线因使用日久,从焊点根部处断裂,要重新进行

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问题:

若500型指针式万用表的表笔香蕉插头处的导线因使用日久,从焊点根部处断裂,要重新进行焊接。而香蕉插头处绝缘塑料是与插头金属柄的直纹滚花注塑成一体的,无法取下,且该塑料耐热较差,容易软化变形。为重新焊好表笔线又不损坏塑料柄,请决定:如何选择烙铁的功率,是大些好,还是小些好?焊接时如何保护塑料手柄不受热变形?

考点:集成电路制造工艺员集成电路制造工艺员(三级)集成电路制造工艺员(三级)题库
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阅读理解。

Dear all,

     I am writing this letter in my room. I can see the Seine (塞纳河) from my window. It's just below my

window and it is beautiful.

     I am staying at a student hotel some miles from the center of Paris. I have got a big room and I use it as

a bedroom, a study and a sitting room! There is a kitchen in the hotel, but I don't often cook there. I usually

have my meals at the university. The food there is good and cheap. 

    The university is only two stops away from here. It takes ten minutes to get there on foot. Most of the

other students ride bicycles, but I haven't got one.

     I am enjoying myself very much. I like walking along the streets. I like Paris. It is quite different from

our town.

     Do write if you have time.

     All the best! 

                                                                                                                                               Yours, 

                                                                                                                                               Gavin

1. Whom is Gavin writing to? [ ]

A. His friend.

B. His teacher.

C. His family.

D. His mother.

2. Gavin has got _____ to live and study in. [ ]

A. one room

B. two rooms

C. three rooms

D. four rooms

3. Gavin often _____. [ ]

A. cooks meals in the hotel

B. cooks meals at the university

C. buys his food at the university

D. has meals on the underground railway

4. Which one of the followings is nearest to Gavin's hotel? [ ]

A. The Seine.

B. The center of Paris.

C. His university.

D. His town.

5. Which of the following sentences is NOT true? [ ]

A. Gavin enjoys his stay in France.

B. Gavin lives in a French family.

C. Gavin doesn't go to the university by bike.

D. The university is not very far from the hotel.

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— ______________.[ ]

A. Yes, let's go

B. You are welcome

C. It's nice

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大理石异型板的规格是由设计、()与生产单位共同商定。

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