解析 B。本题考查市场调研中的样本类型。选项 A“random sample”是随机样本;选项 B“representative sample”是具有代表性的样本,能代表整个总体;选项 C“convenience sample”是便利样本;选项 D“stratified sample”是分层样本。在市场调研中,能代表整个总体的样本是具有代表性的样本。
A选项只选择母语者,这样的样本太单一,不能全面反映各种英语发音情况,因为还有很多非母语者也有不同的发音特点。B选项选取有留学经历的人,这只是一部分特定人群,不能代表所有英语发音的情况。C选项挑选擅长模仿声音的人,这是一个有偏向性的选取方式,不能涵盖正常的发音情况。D选项从不同英语背景下随机选择个体,这样...
large national random sample of ….意思是：全国大型的随机抽样，这里的sample 作为一种行动， 不用复数。例如：We based our analysis on random sample of over 300 males .
4.The term “sample” is prominently used in statistics and quantitative research as a descriptive term. In this discipline, “sample” is a small amount of randomly selected respondents from a population. On the other hand, examples are generally used in almost all disciplines that ...
第三类，拼了老命从零开始写的那类这一类应该是针对大多数吧，从零开始对于各位也有两种选择，一种是literature + reflection of one's own experience and practice+implications, 这类呢就是从理论出发谈某一方面并结合自己实际，批判分析，得出建议;另一类就是develop a research proposal, 个人觉得...
解析 C。在进行市场调研时,样本需要具有随机性。选项 A“small”(小的)样本可能无法代表整体情况;选项 B“large”(大的)样本虽然可能更全面,但如果不是随机选取,也可能存在偏差;选项 C“random”(随机的)能够最大程度地减少偏差,使调研结果更具可靠性;选项 D“fixed”(固定的)样本不能反映真实的市场多样性。
To make the academic research more ___, a large sample size was needed. A. reliable B. unstable C. questionable D. doubtful 相关知识点: 试题来源: 解析 A。“reliable”意为“可靠的”,在学术研究中,大样本量能使研究更可靠,A 选项符合。“unstable”表示“不稳定的”;“questionable”和“doubtful...
In the research, the sample size was ___ to ensure accurate results. A. enlarged B. reduced C. kept D. ignored 相关知识点: 试题来源: 解析 A。“enlarge”有扩大的意思,在研究中,为确保结果准确,样本规模通常需要“enlarged”(扩大),B 选项“reduced”(减少)会降低结果的准确性,C 选项“kept”...
1. One question that needs to be asked, however, is whether ... 2. A serious weakness with this argument, however, is that ... 3. One of the limitations with this explanation is that it does not explain why...4. One criticism of much of the literature on X is that ... 5. Th...
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