仪表用风对()没有特别要求。A.空气的分子组成 B.空气的杂质组成 C.空气的湿度

题型:单项选择题

问题:

仪表用风对()没有特别要求。

A.空气的分子组成

B.空气的杂质组成

C.空气的湿度

D.润滑油携带量

考点:轻烃装置操作工轻烃装置操作(高级工)轻烃装置操作(高级工)题库
题型:单项选择题

分光光度计吸光度的最佳读数范围T:()。

题型:单项选择题

某公司向卫生局申办卫生许可证,卫生局经过审查后应该如何处理( )

A.卫生局如果不能当场作出许可决定,可以自主作出决定的期限

B.卫生局如果认为申请符合卫生标准,可以作出口头许可决定

C.卫生局如果认为申请不符合卫生标准,可以作出不予许可的决定,无须说明理由

D.卫生局如果作出不予颁发卫生许可证的决定,应当告知该公司有权申请复议或者提起行政诉讼

题型:单项选择题

某设备安装工程的网络计划如图5-1所示,计算工期为44天。根据技术方案,确定A、D、I三项工作使用一台机械顺序施工。

图5-1 工程网络计划图1. [问题]

1.如果按A—D—I顺序组织施工,则

(1)网络计划图应如何改变?

(2)计算工期是多少天?

(3)机械在现场的使用和闲置时间各是多少天?

2.如果按D—A—I顺序组织施工,则

(1)网络计划图应如何改变?

(2)计算工期是多少天?

(3)机械在现场的使用和闲置时间各是多少天?

3.比较以上两个方案的优缺点。

4.监理工程师如批准按D—A—I顺序施工的方案,施工中由于业主原因,B项工作时间延长 5天,承包商提出要求延长5天工期。你认为工期延长几天合理?为什么?监理工程师签发机械闲置(赔偿)时间几天合理?为什么?

题型:单项选择题

阅读理解。

     If you're looking for some advice on how to spend your time in Britain, the following tips from the London

Visitor Centre on Lower Regent Street in Central London will be of great help.

     There are lots of free activities to take part in at night, better than spending traveling money in the pubs.

Leicester Square and Covent Garden have lots of street entertainment all year round. A walk along the South

bank is really a pleasant and enjoyable thing that will bring you much enjoyment at night.

     All the national galleries and museums including the British Museum, the National Gallery and the Science

Museum can be visited for free. Liverpool has the largest collection and museums, including the Tate Liverpool. 

     Discount (折扣) shops such as Bicester Village in Cheshire Oaks are very popular. You can not only get

some great bargains but see beautiful views in the countryside.

     Britain's music festivals are getting bigger and better. If there are too many people lining up for the

Glastonbury Festival tickets, which makes you fail to get one, don't be disappointed-there're still many other

music festivals which also provide exciting experiences.

     Alton Towers in Staffordshire, where you can get, a very enjoyable trip,is one of the best theme parks that

you can't miss in Britain.

     Backpacker tours (背包族旅行) are the best way to see a lot of places if you're short of time. They have

great trips which take in the beauty and culture of the area and provide great opportunities to make many new

friends.

1. The author thinks it better for the readers to _____. [ ]

A. save money before visiting Britain

B. enjoy the London street activities

C. find a pub to have a drink in London

D. visit every theme park in Britain

2. A man fond of painting will most probably visit _____. [ ]

A. the British Museum

B. Alton Towers

C. Bicester Village

D. the Glastonbury Festival

3. In Cheshire Oaks, you can _____. [ ]

A. buy many things at low prices

B. see many famous paintings

C. have free meals for three days

D. enjoy many free old films

4. It can be inferred from the passage that _____. [ ]

A. Alton Towers is the best theme park in London

B. Backpacker tours often provide long-time trips

C. the Tate Liverpool is the only museum in Liverpool

D. the Glastonbury Festival is popular in London

5. The tips are written especially for _____. [ ]

A. natives of London

B. travel goods sellers

C. tourists to Britain

D. pub managers

题型:单项选择题

与模拟电路相比,数字电路主要的优点有()。

A、容易设计

B、通用性强

C、保密性好

D、抗干扰能力强

E、针对性强

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