题目内容
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[主观题]
Which one is the common used ways to sampling？
A、Simple random sample without replacement
B、Simple random sample with replacement
C、Stratified sample
D、All above
提问人：网友duchun731
发布时间：2022-01-07
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A、Yes
B、No
题目内容
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第2题
Eugene Nida holds that to be a good translator, one has to be fully aware of five types of sub-culture: _______ culture, linguistic culture, religious culture, material culture and social culture.
第3题
Which sector is one of the most spectacular and controversial achievements of U.S. science in the 2nd half of the 20th century?
A、Nuclear Science
B、Information Technology
C、Environmental Technology
D、Biotechnology
第4题
He ____ the map and tried to find out which way to go.
A、unfolded
B、regulated
C、surpassed
D、grasped
第5题
What does "I'm way behind in history" mean? It means ______.
A、I have been left far behind by other classmates
B、I was written in history book
C、I lost my way to history class
D、I failed in history exam
第6题
Passage Four
Online dating has just been revealed to be one of the most common ways to start a relationship. But new research reveals that the concept is still highly flawed(有缺陷的). An analysis of 400 studies into online dating shows that while it offers access to plenty of other singles, users can be overwhelmed and put off by the volume of choice, defeating the purpose. The research, by Northwestern University and published in the journal Psychological Science in the public interest, found that the processes involved don’t lend themselves to forming strong relationships. The findings also indicated that the concept of an online profile(介绍) is not entirely useful and “can result in treating potential partners as mere objects”.
Lead author Eli J Finkel explained: “Online dating is a terrific addition for singles to meet. However, there are two problems.” First, studying over seemingly endless lists of profiles of people one does not know, as on Match.com, does not reveal much about them. Second, it “overloads people and they end up shutting down,” he said. He compared it to shopping at “supermarkets of love” and said psychological research shows people presented with too many choices tend to make lazy and often poor decisions.
The study’s authors also questioned the algorithms(算法) employed by sites such as eHarmony.com to match people based on their interests or personality—comparing it to having a real estate agent of love. While the algorithm may reduce the number of potential partners from thousands to a few, they may be as unsuitable for each other as two people meeting at random, Dr Finkel explained, adding the chances are no better than finding a relationship by walking into any bar. “There’s no better way to figure out whether you’re a match with somebody than talking to them over a coffee or beer,” Dr Finkel said.
31. What is the author’s attitude towards online dating？
A.Negative
B.Positive
C.Indifferent
D.Neutral
According to Paragraph 2, online dating _____A.Attracts a limited number of singles
B.Has been widely studied recently
C.Is criticized as lacking a purpose
D.Offers too many choice
According to Dr Finkel, what is the best way to find a match？A.An evaluation on the basis of interests and personality.
B.An analysis based on proper computer algorithms
C.A comparison with other potential partners
D.A face-to-face talk with the potential partner
The phrase “lend themselves to”(Para.3) probably means _____B.Be opposed to
C.Be easily used for
D.Be happy with
E.Be consistent with
Why is Dr. Finkel mentioned in the passage？A.He is the lead researcher of the study on online dating
B.He is a well-know professor at Northwestern University
C.He is an expert in analyzing people’s shopping patterns
D.He is the president of a famous online matching website
第7题
Which one is wrong about Equal-width (distance) partitioning and Equal-depth (frequency) partitioning?
A、Equal-width (distance) partitioning is the most straightforward, but outliers may dominate presentation.
B、Equal-depth (frequency) partitioning Divides the range into N intervals, each containing approximately same number of samples.
C、The interval of the former one is not equal.
D、The number of tuples is the same when using the latter one.
