190 The rule of seven used by quality control engineers states that if a run of seven or more samples lays on one side of the process mean, then the process is out of control. What is the probability that this condition is the result of random variations.
题目
190 The rule of seven used by quality control engineers states that if a run of seven or more samples lays on one side of the process mean, then the process is out of control. What is the probability that this condition is the result of random variations.
A. 14.30%
B. 3.12%
C. 2.73%
D. 1.56%
E. 0.78%
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更多“190The rule of seven used by quality control engineers states that if a run of seven or mo ”相关问题
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第1题：
25． How many people go out in Mary's car on Sundays?
A．Five．
B．Six．
C．Seven．
D．Eight．
正确答案：B
25.B【解析】从文中第三段最后一句可知加上Mary 一共有六个人． -
第2题：
共用题干
第二篇
Medical Journals
Medical journals are publications that report medical information to physicians and other
health professionals.
In the past,these journals were available only in print.With the development of electronic publishing,
many medical journals now have Web sites on the Internet,and some journals are published only online.A
few medical journals,like the Journal of the American Medical Association,are considered general medical
journals because they cover many fields of medicine.Most medical journals are specialty journals that focus
on a particular area of medicine.
Medical journals publish many types of articles.Research articles report the results of research studies
on a range of topics varying from the basic mechanisms of diseases to clinical trials that compare outcomes of
different treatments.Review articles summarize and analyze、the information available on a specific topic
based on a careful search of the medical literature.Because the results of individual research studies can be
affected by many factors,combining results from different studies on the same topic can be helpful in reaching
conclusions about the scientific evidence for preventing,diagnosing or treating a particular disease.Case
conferences and case reports may be published in medical journals to educate physicians about particular
illnesses and how to treat them. Editorials in medical journals are short essays that express the views of the
authors,often regarding a research or review article published in the same issue.Editorials provide a per-
spective on how the current article fits with other information on the same topic.Letters to the editor provide
it way for readers of the medical journal to express comments,questions or criticisms about articles published
in that journal.How many major types of articles are mentioned in the passage?
A:Five.
B:Seven.
C:Four.
D:Six.答案：A解析：由文章第一段“Medical journals are publications that report medical information tophysicians and other health professionals.”可知，内科医生和其他健康专业人士是医学杂志的主 要读者。故答案为B。
被选项在内容上都是涉及到“医疗杂志的出版”，所以借助publish作为答案线索，发现 与答案相关句："many medical journals now have Websites on the Internet（该句与A内容一致）, and some journals publish only online.（该句直接与C矛盾）A few medical journals, like the Jour- nal of the American Medical Association,are considered general medical journals because they cov- er many fields of medicine.（该句与B内容一致）Most medical journals are specialty journals that focus on。particular area of medicine.（该句与D内容一致）。”故选C。
由文章最后一段中的内容“Medical journals publish many types of articles.Research arti-dles report the results of...Review articles summarize and analyze…Case conferences and case re- ports may be published in medical journals…Editorials in medical journals are…Letters to the editor provide a way for readers of...”可知，文章的类型有五种。
根据题干中的核心结构different studies on the same topic作为线索，找到答案相关句： "Review articles summarize and analyze the information available on a specific topic based on acareful search of the medical literature."（该句说“综述文章是在对医学文献进行了仔细的查询 后找出的对有关某一具体主题的信息进行的汇总和分析”) "Because the results of individual research studies can be affected by many factors,combining results from different studies on the same topic can be helpful in reaching conclusions about the scientific evidence for preventing,diag- nosing or treating a particular disease."(“对于同一主题的不同研究结果的汇总”在含义上与上 句“综述文章”的目的一致），因此判断选B。
由文章最后一段最后一句“Letters to the editor provide a way for readers of the medical journal to express comments,questions or criticisms about articles published in that journal.”可知， 给编者的信使读者能够对杂志上发表的文章进行评论、提出问题或提出批评意见。第三篇 本篇文章主要讲述的是核辐射对人体的危害，以及可能导致的严重后果。 -
第3题：
学完Lecture 2的课文后，选出每题的正确答案。 How many ways of making our lives more comfortable and saving our environment in this article？
A．Four
B．Five
C．Six
D．Seven
people can make simple changes that have a huge impact on their mental health and wellbeing. -
第4题：
共用题干
Medical Journals Medical journals are publications that report medical information to physicians and other health professionals. In the past,these journals were available only in print.With the development of electronic publishing, many medical journals now have web sites on the Internet,and some journals are published only online.A few medical journals,like the Journal of the American Medical Association,are considered general medical journals because they cover many fields of medicine.
Most medical journals are specialty journals that focus on a particular area of medicine. Medical journals publish many types of articles.Research articles report the results of research studies on a range of topics varying from the basic mechanisms of diseases to clinical trials that compare outcomes of different treatments.
Review articles summarize and analyze the information available on a specific topic based on a careful search of the medical literature.Because the results of individual research studies can be affected by many factors,combining results from different studies on the same topic can be helpful in reaching conclusions about the scientific evidence for preventing,diagnosing or treating a particular disease.
Case conferences and case reports may be published in medical journals to educate physicians about particular illnesses and how to treat them.Editorials in medical journals are short essays that express the views of the authors,often regarding a research or review article published in the same issue.Editorials provide a perspective on how the current article fits with other information on the same topic.
Letters to the editor provide a way for readers of the medical journal to express comments,questions or criticisms about articles published in that journal.How many major types of articles are mentioned inl the passage?
A:Five.
B:Seven.
C:Four.
D:Six.答案：A解析：由文章第一段“Medical journals are publications that report medical information to physicians and health professions.”可知，内科医生和其他健康专业人士是医学杂志的主要读者。故选B。
由文章第二段第二句话“… some journals are published only online.”可知，只有一些医学杂志仅仅在网上发行，而不是大部分都只在网上发行。故选C。
由文章第三段内容可知，医学杂志包含的文章类型有科研论文（research artides)、综述文章（review articles).病例会诊和病例报告（case conferences and case reports)、社论（editorials)和读者来信（letters to the editor)，共5种。故选A。
由文章第三段第三句和第四句话可知，包含同一主题的不同的研究结果的文章是综述文章（review article)。故选B。
由文章最后一段最后一句话“Letters to the editor…to express comments , questions or criticisms about articles published in that journal.”可知，读者来信（letters to the editor）使读者能够对杂志上发表的文章进行评论。故选C。 -
第5题：
共用题干
Medical Journals
Medical journals are publications that report medical information to physicians and other health professionals. in the past,these journals were available only in print.With the development of electronic publishing, many medical journals now have Web sites on the Internet,and some journals are published only online.A few medical journals,like the Journal of the American Medical Association,are considered general medical journals because they cover many fields of medicine.Most medical journals are specialty journals that focus on a particular area of medicine.
Medical journals publish many types of articles.Research articles report the results of research studies on a range of topics varying from the basic mechanisms of diseases to clinical trials that compare outcomes of different treatments.Review articles summarize and analyze the information available on a specific topic based on a careful search of the medical literature.
Because the results of individual research studies can be affected by many factors,combining results from different studies on the same topic can be helpful in reaching conclusions about the scientific evidence for preventing,diagnosing or treating a particular disease.Case conferences and case reports may be published in medical journals to educate physicians about particular illnesses and how to treat them.Editorials in medical journals are short essays that express the views of the authors,often regarding a research or review article published in the same issue.Editorials provide a perspective on how the current article fits with other information on the same topic.Letters to the editor provide a way for readers of the medical journal to express comments,questions or criticisms about articles published in that journal.How many major types of articles are mentioned in the passage?
A:Five.
B:Seven.
C:Four.
D:Six.答案：A解析：由文章第一段“Medical journals are publications that report medical information to physicians and other health professionals.”可知，内科医生和其他健康专业人士是医学刊物的主要读者。故选B。
由文章第二段第二句“…some journals are published only online.”可知，只有一些刊物仅在网上发行，而不是大部分都只在网上发行。故选C。
由文章第三段内容可知，医学刊物包含的文章类型有科研论文（research articles)、综述文章( review articles)、病例会诊和病例报告（case conferences and case reports)、社论（editorials）和读者来信（letters to the editor)，共5种文章类型。故选A。
由文章第三段第三句和第四句话“Review articles … Because the resalts of individual research studies can be affected by…on the same topic can be helpful…”可知，综合同一主题的各种研究结果的文章是综述文章。故选B。
由文章最后一段最后一句话“Letters to the editor provide a way for readers of the medical journal to express comments , questions or criticisms about articles published in that journal.”可知，读者来信（letters to the editor）使医学刊物的读者能够对刊物上发表的文章进行评论、提出问题或提出批评意见。故选C。 -
第6题：
【填空题】运行下列程序,输出结果是____。 #include ＜iostream＞ using namespace std; enum opt{ONE,TWO,THREE,FOUR,FIVE,SIX,SEVEN}op; int main（void) { cout＜＜ONE; cout＜＜TWO; cout＜＜SIX; return 0; }
B 解析：本题考查循环辅助控制语句break和continue，前者退出整个for循环，后者跳过本次循环没有执行完的若干条语句，开始下一次循环操作，建议读者采用本书推荐的列表法分析。