轴向对接的两圆筒直径若存在差异Δφ则在装配时应将直径偏小的圆筒节与滚轴间垫厚(),以

题型:单项选择题

问题:

轴向对接的两圆筒直径若存在差异Δφ则在装配时应将直径偏小的圆筒节与滚轴间垫厚(),以使壁厚偏差均匀并获得同心。

A、Δφ

B、1/2Δφ

C、1/4Δφ

D、2Δφ

考点:冷作钣金工铆工(技师)铆工(技师)题库
题型:单项选择题

女,71岁,初戴全口义齿时发现上颌义齿基托边缘未达到唇颊黏膜转折处,引起的主要不良后果是

A.唇颊黏膜疼痛

B.上颌义齿的固位力降低

C.患者感觉不舒服

D.上颌义齿翘动

E.基托外形不美观

题型:单项选择题

因子宫收缩乏力所致产后出血的最迅速有效的止血方法是_______。

题型:单项选择题

母线安装时,对应A、B、C、N相,涂漆颜色为()。

A.红、绿、黄、黑

B.黄、绿、红、黑

C.黄、红、绿、黑

D.绿、黄、红、黑

题型:单项选择题

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项.选项中有两项为多余选项。

     __1__It is a new term in today's tourism industry.But in an age of growing environmental awareness,it is not too difficult for us to imagine and understand this new form of holiday.

     Ecotourism,which is considered as a kind of responsible tourism,is typically defined(定义)as travel to

places where special and unusual plants,animals and cultural heritages(遗产) are the main attractions.  

__2__   Therefore,programs concerning the protection of some natural and cultural spots also form a part of ecotourism.

     Ecotourism is developing at great speed.According to a recent report by the World Tourism

Organization,ecotourism in recent years has enjoyed an annual growth of about 5% worldwide.  __3__  

They include bird watching,hiking,diving,photography and taking part in various kinds of local cultural

events.

      __4__   However,it looks like some smaller towns and country areas may well become the new

destinations for people to visit tomorrow because they are rich in ecological,cultural and historical

resources(资源).

     Ecotourism has been gaining increasing recognition and popularity mainly for the relaxing,natural and

vivid experience it offers to tourists.People are attracted to nature and long to be close to it.However,a

conflict between nature and human beings is unavoidable.  __5__  

A. The definition of ecotourism is beyond words.

B. It takes ecology and culture into consideration.

C. You may not be very familiar with "ecotourism".

D. More than 80 activities have been listed for ecotourism.

E. People can have great fun enjoying nature through ecotourism.

F. Big cities are still the major places that attract tourists in our society today.

G. How to protect natural resources while taking advantage of them is of great importance

题型:单项选择题

利用云计算、数据挖掘以及模糊识别等人工智能技术,对海量的数据和信息进行分析和处理,对物体实施智能化的控制,指的是物联网的哪个特征?()。

A.可靠传递

B.全面感知

C.智能处理

D.海量存储

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