检定后的计量器具应出具哪些手续？

发布时间：2018-02-21 03:00 │ 来源：www.tikuol.com

题型：问答题简答题

问题：

检定后的计量器具应出具哪些手续？

考点：电力职工应知应会知识电能计量及负控管理电能计量及负控管理题库

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（10分）一列简谐波沿x轴正方向传播，t＝0时波形如图甲所示，已知在0.6s末，A点恰第四次(图中为第一次)出现波峰，求：

(1)该简谐波的波长、波速分别为多少？

(2)经过多少时间x＝5m处的质点P第一次出现波峰？

(3)如果以该机械波传到质点P开始计时，请在图乙中画出P点的振动图象，并标明必要的横、纵坐标值，至少画出一个周期的图象．

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题型：问答题简答题

投资项目资本金占总投资的比例，根据不同行业和项目的经济效益等因素确定，其中钢铁和交通运输项目的资本金比例分别是（）。

A．40%和25%

B．40%和35%

C．35%和25%

D．35%和20%

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题型：问答题简答题

完形填空
Shopping habits in the United States have changed greatly in the last quarter of the 20th century.Early in
the 1900s most American towns and cities had a Main Street.Main Street was always in the heart of a town.This street was __1__on both sides with many __2__ businesses.Here, shoppers walked into stores to look at all sorts of merchandise:clothing, furniture, hardware, groceries.__3__, some shops offered __4__.These shops included drugstores, restaurants, shoerepair stores, and barber or hairdressing shops.__5__ in the
1950s, a change began to __6__.Too many automobiles had crowded into Main Street while too few
parking places were __7__ shoppers.Because the streets were crowded, merchants began to look with
interest at the open spaces __8__the city limits.Open space is what their cardriving customers needed.
And open space is what they got when the first shopping centre was built.Shopping centres, or rather
malls, __9__ as a collection of small new stores __10__crowded city centres.__11__ by hundreds of free
parking space, customers were drawn away from __12__ areas to outlying malls.And the growing __13__ of shopping centres led __14__to the building of bigger and better stocked stores.By the late 1970s, many
shopping malls had almost developed into small cities themselves.In addition to providing the __15__ of one stop shopping, malls were transformed into landscaped parks, with benches, fountains, and outdoor
entertainment.

( )1. A.built
( )2. A.varied
( )3. A.Apart from
( )4. A.medical care
( )5. A.Suddenly
( )6. A.be taking place
( )7. A.available for
( )8. A.over
( )9. A.started
( )10. A.out of
( )11. A.Attracted
( )12. A.inner
( )13. A.distinction
( )14. A.on
( )15. A.cheapness

B. designed
B. various
B. However
B. food
B. Abruptly
B. take place
B. available to
B. from
B. founded
B. away from
B. Surprised
B. central
B. fame
B. in turn
B. readiness

C. intended
C. sorted
C. In addition
C. cosmetics
C. Contrarily
C. be taken place
C. used by
C. out of
C. set up
C. next to
C. Delighted
C. shopping
C. popularity
C. by turns
C. convenience

D. lined
D. mixed-up
D. As well
D. services
D. But
D. have taken place
D. ready for
D. outside
D. organized
D. near
D. Enjoyed
D. downtown
D. liking
D. further
D. handiness

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题型：问答题简答题

在普碳钢的拉伸试验中，试件在出现屈服平台后开始塑性变形，达到（）时试件断裂。

A、屈服极限

B、强度极限

C、塑性极限

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题型：问答题简答题

连某因犯诈骗罪被判处无期徒刑，附加剥夺政治权利终身；犯故意伤害罪被判处10年有期徒刑，附加剥夺政治权利3年。在数罪并罚时，应当采用( )。

A．限制加重原则

B．并科原则

C．吸收原则

D．相加原则

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