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房水是由什么生成

2020-09-25 00:45:45 [优学院答案] 来源:超星题库网

下列能够帮助学生逐渐养成自主学习能力的方法是:

  • 使用翻转课堂教学法
  • 为学生制定严格的学习活动步骤,让他们按照步骤去实施
  • 学生必须独立完成作业或任务,不允许讨论作业答案
  • 完全由学生做出在学习活动中的所有选择,教师不提供任何干预

刚体的_______和________称为刚体的基本运动,是刚体运动的最简单形态。

  • 曲线移动、平行移动
  • 平行移动、定轴转动
  • 定轴转动、曲线移动
  • 转动、平行移动

皮带轮边缘上一点A以50cm/s的速度运动,在轮内另一点B以10cm/s的速度运动,两点到轮轴距离相差20cm,则皮带轮的角速度为和直径分别为( )。【图片】

在图示的轮系中,已知【图片】,则轮系的速比【图片】_______。【图片】

  • 2

  • 6

  • 8

  • 4

房水是由什么生成

如图所示,电动绞车由皮带轮Ⅰ和Ⅱ以及鼓轮Ⅲ组成,鼓轮Ⅲ和皮带轮Ⅱ刚性地固定在同一轴上。各轮的半径分别为【图片】,轮Ⅰ的转速为【图片】。设皮带轮与皮带之间无滑动,则物体P上升的速度为_______。

转动刚体内任一点的切向加速度等于刚体的____________。

  • 角加速度矢与该点矢径的乘积
  • 角速度矢与该点矢径的乘积
  • 角加速度矢与该点速度矢的乘积
  • 角速度矢与该点的速度矢的乘积

下列矢积书写正确的是____________。

在刚体运动过程中,若其上有一条直线始终平行于它的初始位置,这种刚体的运动就是平动。

  • 正确
  • 错误

刚体平动时各点的轨迹一定在同一平面内。

  • 错误
  • 正确

若刚体内各点均作圆周运动,则此刚体的运动必是定轴转动。

  • 错误
  • 正确

The largest news agency in the United States is the Associated Press (AP).

  • 正确
  • 错误

Emmy Statuette depicts awinged woman holding an atom.

  • 正确
  • 错误

VOA isthe first channel to provide 24-hour television news coverage and the first all-news television channel in the United States.

  • 正确
  • 错误

NBC nowowns two radio networks— the Red Network and the Blue Network.

  • 正确
  • 错误

房水是由什么生成

Financed almost wholly by viewers’ license fees, ITV runs no commercials, either sound or television.

  • 正确
  • 错误

NMEis an American general interest family magazine, which offers condensed articles from a wide variety of publications.

  • 正确
  • 错误

The motto ofThe Wall Street Journal is“All the News That’s Fit to Print”.

  • 正确
  • 错误

Which of the following newspapers hasthe largest circulation among daily newspapers in the United Kingdom?

  • The Times
  • The Daily Telegraph
  • The Sun
  • The Financial Times

Which of the following magazines is not a British magazine?

  • The Economist
  • New Scientist
  • Newsweek
  • The Spectator

Which of the following "Big Three"radio and television networks in the United States is also called the "Peacock Network"?

  • NBC
  • CBS
  • ABC
  • HBO

Which of the following awards belongs to the television industry?

  • the Academy Award
  • the Emmy Award
  • the Tony Award
  • the Grammy Award

Which of the following news agencies does not belong to the United Kingdom?

  • Reuters
  • The Press Association
  • The Associated Press
  • AFX News Ltd

Which of the following tourist sites is not a Hollywood landmark?

  • Beverly Hills
  • TCL Chinese Theatre
  • the Universal Studios
  • Millennium Dome

Which of the following movies is produced by film companies in the United Kingdom?

  • The King’s Speech
  • Harry Potter
  • The Lord of the Rings
  • Pirates of the Caribbean

The central themes in Harry Potter always involve tolerance of other people and _________.

  • reliance on community
  • self-reliance
  • independence
  • altruism

When did David Copperfield publish?

  • 1849
  • 1850
  • 1851
  • 1852

All of the following expressions about David Copperfield are true except_____.

  • Throughout the novel, Dickens criticizes his society’s view of wealth and class as measures of a person’s value.
  • Dickens draws on his own experience as a child to reflect the exploitation of child labor and the lack of compassion towards the weak in the burgeoning industrial society.
  • Through his works, Dickens satirized the hypocrisy and tyranny in the adult world from the perspective of innocent children.
  • He also chastises the inhuman abuse of the weak and helpless.

房水是由什么生成

Which of the following description is true about American Romanticism?

  • It believes that individuals can intuitively receive higher truths which are usually unavailable through common methods of knowing.
  • Mark Twain is one of the prominent American romanticism writers.
  • American literature during the Age of Romanticism approximately extended from the ending year of the Civil War to the year before World WarⅠ.
  • American romanticism writers wrote in response to the increasing gap between wealth and poverty, progress and decline.

Between the 18th Century and 19th Century, social advancement for men was through the following careers except _________.

  • soldier
  • doctor
  • clergyman
  • lawyer

Jane Austen was born in Steventon, England, in ______.

  • 1775
  • 1776
  • 1777
  • 1778

Which of the following works was written by Jane Austen except______?

  • Mansfield Park
  • Persuasion
  • Great Expectations
  • Emma

Which of the following workswas not written by Charles Dickens?

  • Bleak House
  • A Tale of Two Cities
  • The Adventures of Huckleberry Finn
  • Great Expectations

Henry David Thoreau seems to be the _______ literary figure in the American history to revolt against the threat that industrialism and materialism brought to people’s daily life.

  • forth
  • first
  • third
  • second

The Harry Potter series have gained popularity and commercial success worldwide since its first book been released in the year of ______.

  • 1987
  • 1997
  • 2007
  • 2015

Walt Whitman and Emily Dickinson were two major poets in the period of American Realism. __________

  • 正确
  • 错误

The writer of Walden is Henry David Thoreau. __________

  • 正确
  • 错误

Austen’s works depict the England during its transition between the 19th Century and 20th Century.. __________

  • 正确
  • 错误

Sense and Sensibility was written by Jane Austen. _______

  • 正确
  • 错误

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