人口抽样调查的基本方法()、()、()、()和多阶段抽样。

题型:填空题

问题:

人口抽样调查的基本方法()、()、()、()和多阶段抽样。

考点:社会学人口统计学人口统计学题库
题型:填空题

焊接性能最好的材料是()

A.低碳钢 

B.高碳钢 

C.灰铸体 

D.镁合金

题型:填空题

以下对硫酸生产中二氧化硫催化氧化采用“两转两吸”流程叙述正确的是()。

A、最终转化率高,尾气中二氧化硫低

B、进转化器中的炉气中二氧化硫的起始浓度高

C、催化剂利用系数高

D、用于该流程的投资较其他流程的投资少

题型:填空题

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。

     People living in the country enjoy several advantages that people living in the city cannot enjoy. 

     1______ They make friends with trees and stones. They breathe fresh air. They fight with strong winds.

2______.

     This contact with nature is good for health. There are many diseases that are common in the city, but are

not to be found in the country, For example, near-sightedness is almost unknown to country people.

     Because of the absence of cars, one can walk more freely in the country than in the city, 3______ 

     People living in the country can easily get fresh vegetables, fresh fruit and fresh milk, and they get them

at lower prices than in the city. 

     4______  There are practically no temptations to waste money. 

     5______ They say what they mean, and make and keep promises with sincerity (诚意). They do not put

on air (摆架子). They do not pretend to have those ridiculous manners which are necessary in what we call

polite society.

A. They listen to the song of birds.

B. Country people are mostly honest.

C. They are in close contact with nature.

D. Country people are far from town life.

E. Country life is economical (节俭的) in other ways, too.

F. Country life provides much more enjoyment.

G. There are no rules of the road nor traffic signs to obey.

题型:填空题

下列哪个是离散制造类型的特点()

A、相同的设备聚集在同一地方,物流路线长而复杂

B、不同的设备聚集在同一地方,物流路线简单而固定

C、具有较强的适应不同产品品种的能力,响应市场程度高

D、是以工艺为原则的基础上确定的

题型:填空题

下列选项中不属于商标权的是()

A.商标许可权

B.商标续展权

C.商标修改权

D.商标转让权

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