在均质的孔隙介质中,通常可以应用达西定律来计算渗流流场。达西定律的关系式和应用条件是

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问题:

在均质的孔隙介质中,通常可以应用达西定律来计算渗流流场。达西定律的关系式和应用条件是()。

A.流速v和水力坡降J的关系为v=kJ,适用于紊流渗流

B.流速v和水力坡降J的关系为v=kJ2,适用于层流渗流和紊流渗流

C.流速v和水力坡降J的关系为,适用于紊流渗流

D.流速v和水力坡降J的关系为v=kJ,适用于层流渗流

考点:勘察设计行业考试勘察设计注册公用设备工程师公共基础
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为了核实被审计单位库存现金是否真实存在,审计人员应采取的审计程序是______。

A.审阅现金日记账摘要栏

B.核对现金日记账与总账余额的一致性

C.抽查大额现金收付的原始凭证

D.对库存现金进行监盘

题型:单项选择题

My father often works very harD.And he has   1 to see a film. Here I’ll tell you   2  about him.

  One afternoon, when he finished his work and   3  go home, he found a film ticket under the   4 on his desk. He thought he   5  to have not much work to do that day and   6  was quite wonderful to pass the   7  at the cinemA.So he came back home and   8  finished his supper. Then he said   9  to us and left.

  But to our   10  , he came back about half an hour later, I   11  him what was the matter. He smiled and told us about  12  funny thing that had happened at the cinema.

  When my father was sitting in his seat, a   13  came to my father’s and said that the seat was   14  . My father was surpriseD.He took out the ticket   15  looked at it carefully. It was Row17,  16 . And then he looked at the seat. It was the same. So he asked her    17   her ticket. She took out the ticket at once and the seat shown in it was Row 17, Seat 3.

   18   ? What’s the matter with all this? While they were wondering suddenly the woman said, “The   19   of the tickets are different.” So they looked at the ticket more carefully. After a while, my father said, “Oh,   20  , I made a mistake. My ticket is for the film a month ago. Take this seat, please.” With these words, he left the cinema.

1. A.little money         B.much money      C.little time             D.much time

2. A.a funny story        B.a good story       C.an old story          D.a strange story

3. A.was to                 B.was about to       C.had to                  D.ought

4. A.box                     B.book                 C.glass                    D.paper

5. A.happened             B.liked                 C.pretended              D.wanted

6. A.it                         B.this                   C.that                      D.which

7. A.morning              B.afternoon           C.day                      D.evening

8. A.early                   B.quietly               C.quickly                 D.suddenly

9. A.hello                   B.good-bye           C.good evening        D.good night

10.A.disappointment    B.joy                    C.sorrow                  D.surprise

11.A.asked                  B.explained           C.told                      D.wanted

12.A.a                        B.one                   C.some                   D.the

13.A.man                   B.woman              C.doctor                  D.nurse

14.A.hers                    B.his                    C.taken                   D.wrong

15.A.and                    B.but                    C.or                        D.so

16.A.Seat1                  B.Seat2                 C.Seat3                   D.Seat4

17.A.it bring               B.to get                C.to see                   D.to show

18.A.Why                   B.How                  C.When                  D.where

19.A.designs               B.colors                C.prices                   D.owners

20.A.I’m sad               B.I’m sorry           C.I’m wrong           D.I’m worried

题型:单项选择题

街道、乡、镇党的基层委员会和村、社区党组织,领导地区的工作,()行政组织、经济组织和群众自治组织充分行使职权。

A.支持和保证

B.保证和监督

C.支持和领导

D.支持和监督

题型:单项选择题

下列哪一项不是子宫内膜癌声像图表现:

A.子宫增大

B.子宫内膜厚度小于4mm

C.子宫内膜呈团块状回声

D.宫腔内积液

E.子宫内膜不均匀增厚

题型:单项选择题

在本辖区内出现首例流脑病例时,县级疾病预防控制机构应对病人所在地的医疗机构开展病例搜索,必要时开展社区病例主动搜索。

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