Why does sample size for different questions vary in the same survey?

Q: Would different sample size for different questions affect the sampling error?

问: 个别题目的样本数目会否影响抽样误差?

Eta-squared ( η2 ) is a measure of effect size for use in ANOVA.

埃塔平方是在方差分析中应用的一种效应值估量.

Do you think my pants are the right size for you?

这条裤子腰围尺寸适合我 吗 ?

James Bond: No it's just the right size, for me that is!

占士邦: 不是, 对我来说,这是适合的大小!

This is about the average size for British schools.

这大概是英国学校的平均规模.

I think I can find the right size for you.

我想我能给你找到合适的尺码.

The Czars ruled Russia autocratically.

沙皇非常专制统治着俄国.

With an iron rod you shall shepherd them, like a clay pot you will shatter them.

你必以铁杖将他们粉碎, 就如打破陶匠的瓦器.

Child, as under the timedeeply , the iron rod also can grind to the needle!

孩子, 只要功夫下得深,铁棒也能磨成针呀!

An iron rod on which molten glass is handled when being shaped and worked.

这样,高温就使得铁保持熔化状态.

If you work hard enough , you can grind an iron rod into a needle.

只要功夫深, 铁棒磨成针. 英语怎么说?

If you work at it hard enough, you can grind an iron rod into a needle.

只要功夫深, 铁杵磨成针.

The worker bent an iron rod into a hoop.

工人把铁条弯成箍.

He spent hours filing the iron rod in two.

他花了几个小时把那条铁棒锉成两截.

He filed an iron rod in two.

他把一根铁棒锉成两截.

He rammed an iron rod through.

他把一根铁棒捅了过去.

This paper presents a type of angle displacement detecting system with single selsyn.

本文介绍了一种只用单自整角机作为角位移检测元件的检测系统.

My company is a front for an international crime syndicate.

我的公司是国际犯罪集团的掩护者.

This is a condition brought about by the combined effect of evolution and civilization.

这个状态是由进化和教化的联合作用引起的.

Objective To study the combined effect of formaldehyde and noise on blood pressure.

目的了解甲醛和噪声对血压的联合作用.